Henry Gibson Dan (25 August 1929 – 30 December 2020), known as Seaman Dan, was a Torres Strait Islander singer-songwriter and musician with a national and international reputation. After years of per
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cccfed0d5302081ef38f2d8095a0e0626b0d8a4159d581a7670314b4b7b1ac. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb5d8777-e1e6-46e2-9238-fde84d63d556.json and https://artists.proofprofile.net/proofs/artist/cb5d8777-e1e6-46e2-9238-fde84d63d556.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8608ac8bb4a371783a31dad768d08104bcf7fe9c52afdc1e6255ef0135b45392. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:08:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUSS10000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca172c26e9a9b86b5caf8cd6ba1a5136d59fec6b971af42fec15cfffa3facc5. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:26:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUSS10400006.
Somewhere There's An Island (Best Of 1999 - 2006)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2911be7d4ba225262e7d45a452b1266af89d58ef5cebf7e7f6d23f8887c457. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:05:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUSS10700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da51d7847899e2fdcbfba0cbc9a8df7665fa78c54612551c133da3984823145. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUSS11400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150697f4c0e8be36ba2f0f147e37e51f91dc4696508f6c3b94d05f7004a48c41. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUSS11600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4afaba5dae3e9d90aca3414a2f0c965c2cff2e5d44ad293cf3b8be0a442de2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6QR2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4afaba5dae3e9d90aca3414a2f0c965c2cff2e5d44ad293cf3b8be0a442de2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6QR2300080.