During March, an entity transferred $1 million worth of Bitcoin via a prominent cryptocurrency custodian. Roughly three weeks later, virtually the identical sum was returned. Startlingly, fewer than two months following that movement, the Bitcoin was purposefully wiped out.
The address had remained inactive for nearly 12 years prior to suddenly springing back into action. Bitcoin educator Bennet observed that it transferred 20.00010537 BTC to “a custodian of some kind” before recovering the funds (minus roughly $3).
“The whole balance went out to what looks like an exchange hot wallet, and almost exactly the same amount came back three weeks later. Seven weeks after that, it was burned.”
This enigmatic BTC transfer forms part of a broader puzzle surrounding 107 BTC burned in May, valued at approximately $8.5 million during that period.
Fresh onchain investigations indicate that five addresses which ultimately destroyed their Bitcoin seem to be managed by the identical individual. This entity was likely an early Bitcoin participant who held balances on the bankrupt Mt. Gox platform.
Yet why would someone intentionally eliminate millions of dollars in Bitcoin?
The BTC wallets behind the burn
The five addresses that eventually dispatched their Bitcoin to an unspendable destination exhibit “strong indicators of common ownership,” as stated by Chainalysis.
How to destroy Bitcoin. Source: Bennet.org
Every one of the five wallets received its initial funding on the identical date in April 2014, and each subsequently forwarded nearly identical dollar-equivalent sums of BTC to the same deposit address at a major centralized exchange.
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Furthermore, these wallets appear to have functioned in rotation: a single address would transmit Bitcoin to the exchange until its activity ceased, after which another wallet took over utilizing transfers of “similar cadence and value.”
Chainalysis notes that the majority of these funds trace back to Mt. Gox, “suggesting the owner was an early adopter of Bitcoin.”
This does not conclusively indicate that the assets were withdrawn straight from Mt. Gox, given that the trading venue halted operations in February 2014, whereas the five wallets were funded that April. Bennet remarks:
“It’s entirely possible that the owner of these coins was one of the lucky ones who managed to get their coins off the exchange before it collapsed.”
The specific custodian continues to be unidentified. Chainalysis affirms that it is a substantial centralized exchange, yet clarifies that it does not reveal the names of services it discovers to the public.
Bennet’s investigation suggests that the destination behaves similarly to a fixed user deposit address at an institutional custodian.
This is because the address holds no persistent balance, and inbound deposits are gathered into multi-input transactions prior to being pooled into a omnibus wallet.
Once the Bitcoin enters the custody provider’s internal infrastructure, the public ledger can no longer track what occurred with those assets. This reality makes the wallet’s preceding transaction history even more intriguing.
The $10,400 clue
One of these five addresses sent 19.6 BTC over 60 separate transfers to the custodian between 2022 and 2024.
The underlying Bitcoin quantities varied widely, ranging between roughly 0.15 BTC and 0.62 BTC. However, when evaluated in fiat terms, the transactions exhibit remarkable consistency.
This address sent 19.6 BTC in 60 transactions to the same custodian. Source: Mempool.space
Even though the price of Bitcoin expanded more than fourfold across this timeline, 58 out of the 60 transactions were within a 10% margin of roughly $10,400 at the moment they occurred.
Consequently, while the holder was not moving fixed quantities of BTC, they were consistently dispatching almost identical USD amounts. Bennet states:
“This suggests to me a planned liquidation strategy.”
There is no way to confirm this hypothesis strictly through onchain data, because the BTC was pooled with extensive quantities of other coins once deposited at the custodian, and public records do not clarify whether the Bitcoin was converted, retained, or shifted elsewhere.
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Bennet also points out that “while payment size was constant,” the “frequency was not — these $10k transfers came in clusters,” which aligns more closely with an individual dispatching set dollar amounts as needed rather than adhering to a robotic, automated routine.
The $1 million round trip
Although the $10,400 transfers provide a plausible rationale for the owner’s earlier interactions with the platform, they fail to explain the $1 million round-trip event that occurred in March.
Following nearly 12 years of dormancy, the address abruptly moved its total holding of 20.00010537 BTC and was refunded 20.00006037 BTC, representing a gap of merely 4,500 satoshis, or roughly $3.
This outcome contradicts the notion that the owner was merely trading the Bitcoin, as virtually the exact same balance returned regardless of whatever internal operations transpired at the custodian.
This address sent 20 BTC and received 20 BTC back. Source: Mempool.space
The returning Bitcoin was distributed across three distinct transfers of 7 BTC, 7 BTC, and 6.00006037 BTC, executed across three straight days.
Bennet explains that these whole figures align with daily withdrawal thresholds enforced by the custodian. Most importantly, the returned funds did not migrate to a fresh address; they went back to the originating wallet that first transmitted them.
The onchain record also demonstrates that the identical private key controller held dominion over the funds both prior to and following the round trip, Bennet explains: transacting the Bitcoin in March required the private key, and burning it in May required that very same key once more.
This sequence makes the series of actions exceptionally difficult to interpret as a typical exchange transfer.
So why did they do it?
Several hypotheses exist, yet none completely aligns with all the facts. While the gradual liquidation theory explains the earlier activity, it fails to clarify why the owner routed roughly $1 million across the identical rail in March only to retrieve almost the entire balance.
One scenario is that the owner was checking an aged wallet or custody process following 12 years of inactivity, transferring the assets through a prominent custodian and successfully recovering them to verify the old key and setup still functioned properly. Yet, why permanently destroy the Bitcoin immediately afterward?
Tax obligations or regulatory compliance requirements might offer a rationale for transferring an ancient balance through a regulated entity, but no evidence connects this transfer to any specific tax or regulatory proceeding.
A privacy angle is another possibility. Funneling Bitcoin through a custodial service that aggregates incoming deposits into omnibus pools renders future onchain tracking significantly more challenging. While plausible, this still offers no explanation for why the coins were ultimately burned.
It is also conceivable that the burn itself served as a symbolic statement. However, aside from a small group of blockchain analysts, the event passed virtually unnoticed.
Destroying Bitcoin is an irreversible action, meaning whoever held the private keys actively chose to send the funds to an address where they can never again be moved, rather than merely leaving the wallet untouched. Bennet remarks:
“There’s also the possibility that a very wealthy individual without heirs decided to permanently burn their coins (thereby publicly reducing the total bitcoin supply), rather than just destroying their keys.”
At present, even the most prominent blockchain analytics companies lack definitive answers. Chainalysis acknowledged:
“We don’t have a clear explanation for why the owner would move a long-dormant stash through a custodian, retrieve roughly the same amount, and then deliberately burn it.”
Although the blockchain provides an exceptionally thorough trail of what transpired, it cannot reveal the underlying motivation. For the time being, that remains an unanswered million-dollar riddle.
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Originally published at https://cointelegraph.com/magazine/mystery-surrounds-why-an-og-burned-1m-in-bitcoin?utm_source=rss_feed&utm_medium=rss&utm_campaign=rss_partner_inbound.
