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 0x39474473c10bd4033e2c7a9c720801a1ff14d1e0fe0d69ce1b6cb455f3689119. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b40e7442-4774-4d66-8e69-882accfe6edf.json and https://artists.proofprofile.net/proofs/artist/b40e7442-4774-4d66-8e69-882accfe6edf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Steel Series II: Interplanetary / Ai Jai (Stefano Lotti Edits)
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 0xb22db22086f339cc2fe87a937866b051ce928e07e89e732e42d4f89dcb310072. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:53:49Z), 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/DEY471880967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1f41eb93cd96a8a60bdb835170b364b380175d327d1da46238ed86afbebb35. 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/DEG932104996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a703000a28e62ec3cf9d34a1d0422c17473c60a38a3a903a7df2699f91fd91. 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/GBKQU2203493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff5aada827f0feae6f6e260b40b18078f959e5605a5c699bd1a48687b0d3851. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBKQU2420706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96797a91f335db0675c173b0653036a7e7cf95935e456bf1f257d327b5a8d02. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NL8RL2413093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313f2cdace0945ed993a117a55707711ba1ce85d6d89a72d9317f98d101a3cb1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBLV62405348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c8a430dc0bb131e9277471be5ddbba9f8100a992134cae25a22c8e04def90c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBLV62405349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a833f20f8c824f1c6eb78110ac9e4d839e16d9f32da9ea9b003bb868d3130a7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:50:25Z), 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/US83Z2505684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdc1e802a5dcc0724fcf800f2e5fa3bd9a4b27daee7d2525725bee2f600d4c4. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/DEDH72300393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa235bf477e250b3e4bdb80666d3abc8d3c01ab1970bbaa2e5af542d9d8c1abf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU1996308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f22dea5a75d1072038a7290f13fd1212ba77f205660f711aa41071c7297fcd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEBE72300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1564919c12d5fab27c0881a01a93789212f4c1eaadef727a645ad97fd4fe18. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEBE72200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4e6ca07ff6541d7ff509222a930625cc807019f827952f9380cad175068bbb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEBE72200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14feea17b4c84312820924bb481d8a0cf6f0acea76a7325cb45313ba5def0e9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEBE72200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ba854a4540ed3aeacddb7135e8d9b8c85048e89628451d392682b03251224f. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/DEG932101852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab10c6fb52631942ff4d1a7b91dceaefd339fceeab8b53e5e5dc434e3252149. 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/DEG932101853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dc661c7fb2da9214335dfca0925df495863a8cd6789a8869b5954ce13f8eea. 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/DESH41900469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42137e57208db9fd0d2793a5eb6badee34817fdb8acbe3226b44b418a7de1e4f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DESH41900471.
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 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 0xa59eb753167c7c362e4cb963fe950368c0f147d295f511daf22caf8690bcf4e3. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEY472170625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8833c7cc68eb4667f21964e3e2f7032174e79e27f329e6c4b6296881bebff3f6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEBE72200042.