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 0xb929bab1949c035015e3302ac4cc406c98c553ca687ba7e39bd9bf3f76255c0f. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05d68edc-47e0-4745-8c95-17a87e9843b4.json and https://artists.proofprofile.net/proofs/artist/05d68edc-47e0-4745-8c95-17a87e9843b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Celtic dream: avel et mor (les fiançailles de la mer et du vent)
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 0xb0941097c09ed7a7ca907207c71ac849c71963a3f819ddfecc6d6196e76b32e8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V89901401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084889ce3214d838100785514fa161cf108d2b1bcdd7334de73c85bb4944405e. 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/FR6V89901402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63da658e5bb74870651836c0174f8a806df3b59fdfe580e8ed4ff0ce9f699962. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/FR6V89901403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed37e074aeca4a740ecd14503dadff3ae88fb2cbdfa22e12ef6048b608ee2b61. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR6V89901404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7998718b9bebfdacb583c136a7a212e88508ea9c704f0d0e78c7c921e00ae03e. 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/FR6V89901405.
Musique et merveilles: le songe de brocéliande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ccd635b6d68f2b4d97e0745e1b39d2855e23a7c055dc2105a9db4ad7d3afa0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR8E41300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca4bd9826e962174f63933831db812964f1b092f4c34def67dcbfe579ee6ffd. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:56Z), 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/FR8E41600577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ccd635b6d68f2b4d97e0745e1b39d2855e23a7c055dc2105a9db4ad7d3afa0. 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/FR8E41300046.
Zen & Relaxation Music, Vol. 2 (50 titres pour Spa, Sauna, Bien-être, Relaxation, Détente, Soins, Massage, Phytothérapie, Zen, Yoga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fae46d601bf53883404cfcc144d4a08344ae6543017fa1222c234d93d2f6ed. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V80173180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5de6b139787c9f5ae08c2a9daa05fbd3583884bfcd203eb33517c6ae297fd1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR3E30700100.