Seemann is the German word for sailor. It may refer to: Seemann (surname) "Seemann" (Lolita song), released 1960 by Austrian singer Lolita "Seemann" (Rammstein song), a 1996 single by the German ba
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afc57b94dbcb6e65d841cfecc5113db7ac196b843a92bb75a2850b7924ee028. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a8c8267-6cd6-42ba-b5d8-306ab454d2cb.json and https://artists.proofprofile.net/proofs/artist/3a8c8267-6cd6-42ba-b5d8-306ab454d2cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).