bc1q4j7fcl8zx5yl56j00nkqez9zf3f6ggqchwzzcs5hjxwqhsgxvavq3qfgpr

P2WPKH/P2WSH (bc1q)

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Quantum exposure Reuse-exposed

P2WSH · reuse-exposed

P2WSH addresses hide the pubkey behind a SHA-256 + RIPEMD-160 hash UNTIL the first outgoing spend, which reveals it in the signature script or witness data. This address has been spent from, so its pubkey is permanently on chain. Every subsequent UTXO at this address is just as exposed as the moment of first spend.

First revealed at block 829,317 on 2024-02-07 (p2wsh_redeem_reveal).

Context: Bitcoin quantum exposure report · Top exposed addresses · Quantum and Bitcoin (LearnBitcoin.com)

What we know about this address 5 findings

Coincheck (unconfirmed)

Two community-curated label databases (OKLink, BitInfoCharts) tag this address Coincheck, but the attribution did not survive adversarial verification: WalletExplorer, CoinCarp, Coinlore, Arkham, OXT, and Blockchair all show NO entity label, the two cited sources are likely not independent (both scrape upstream community feeds), and the ~$2.8B balance is implausibly large for a mid-tier Japanese exchange that has never disclosed BTC reserves of this magnitude. Listed at low confidence pending primary disclosure. Provenance: LOW, label-database hit contradicted by scale + cross-source absence.

label view
exchange

tag
coincheck

tag
speculative

tag
scale-implausibility

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