The Saâne () is a river of Normandy, France, in length, flowing through the department of Seine-Maritime. Geography The Saâne has its source in the Pays de Caux in the territory of the hamlet of V
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 0x5dd4ed3f037784ec39c9b111dc82c6282866f679451b152fb51280a32fddb167. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a663ddef-9a2f-4dc1-95e2-9fec5fd134ca.json and https://artists.proofprofile.net/proofs/artist/a663ddef-9a2f-4dc1-95e2-9fec5fd134ca.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 0x7a9a6f10581522e50bce2c3613e743524aa84582a4a5fc5572aed21989c0673a. 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/FRZ052100147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf609345d356e12ffc567e7cc48f8474711082948651fb4df9ef978435ff725a7. 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/FRZ052100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c721cb9eb68e5d7970df2488d2257a4160a9f116972045ed35fb018b350ad03. 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/FRZ052100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea466175a1961ee1a54a9fc52c5971a25993e10cd216038d1a147d4e117966a. 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/FRZ052100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ec53bf6939b7e0b233f6d1ca9475dabf9f1ee4dac33aebf7a4daf84385f558. 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/FRZ052100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecb57870918b9fb23b185091922e49f3c1c1a6cd99fbe4e41d1f88ef9322d82. 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/FRZ052100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdfb1fd1e7b0b9db15de10ea24564057d8b76f6fb351e8b92d1f5c82051dec5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRZ052100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad1ed37f006363ea6237d1830d55a8457227793b5194bb0df4acf9a629a2f13. 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/FRZ052100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d704fb66056974561c00f45d4825b1eb12762965bd6d5c95729c7d8a136a8c. 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/FRZ052100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6426bce13402781232cbecb0d4a636d55c9d2f9d076461bccff1d8efa02f649. 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/FRZ052100168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce41fe78e56e541de9380383359e0361d0c0ded2e195a3a022874eb717e317a2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ052100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6163a08aca8ae0db8b385c3165c6175c6160dce0ed47095061a3204d8aba5470. 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/FRZ052100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9e49b0c4116699961e736c30d1970f098248c922e8ce5216bd174ad51bf0dc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAIC2461902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c2cc7075ae344e31220049fa0849a04af71cc26ef62157381cf57887a7b133. 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/TCAIS2437591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9e49b0c4116699961e736c30d1970f098248c922e8ce5216bd174ad51bf0dc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAIC2461902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cf4dc1bb541e7865ed10ade6720693fa1fcc61686febd962ae0835e963d9d5. 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/NL4NL2214080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c2ce71fe4f2d03e4f42d199f2c95600dc47be9eb55843b2e1ef4384a923fb3. 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/TCAFP2124394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d86fea399b95f57920a5154989b0436e74059b47fd3db6c3361963bf38f3eb6. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TCAFK2117156.