1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x115d1ef92106e503876cb3a989d3a6a638cfb3173bc405c1dd891afe4488c126. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e12950c-8e44-49d6-8360-380fcdf67aed.json and https://artists.proofprofile.net/proofs/artist/0e12950c-8e44-49d6-8360-380fcdf67aed.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 → block OTSBitcoinBlock must exist at that height 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 0x5e33ceaeed01a1ce45a07a3485a30e182ec7e0f6d2b7451b0e98628ec38864a2. 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/CAQ522046002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e7c713692fae019b744dcc4814fc1ce30cf103b2ff03a03d460c1aa16ab673. 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/CAQ522046001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a49d907debaa2aabf8fe13b1aac44d550f3b72aeb96956c1830cef602b3f5f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CAQ522046004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185f9c5de256d711cbde8075914427a2aa8e412b94552e0c07254599398f4350. 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/CAQ522046014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4575c8a0fde6db5f261a1512143c6ddba0dc92959c47d557d379a2dca4ef4296. 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/CAQ522046005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bbbd1596073560ef87a7a6bee5d2656265c4bb721d77cc2c62790874fc4053. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAQ522046010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfade72dca8d18948cf880bfe8c40a96a2b409118672474cd5d38793e1ff7ac8e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAQ520517101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04138cbe96f72a9cfc1932c8ac23c60756901d413c3d0ef4b621dbacc3f44500. 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/CAQ520517106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb01acf323f163e8be2121449abcaf4ede8911ebdaf2eaacaf75b163974aef5a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CAQ520517111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c56b0d5ea27e18c27e7eb932ccf4c430124b409c942e7e16c3b81b7a576cc19. 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/CAQ520517115.
Le meilleur de Star Académie : l'académie en amour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f958f4ecfe60a2161ad4349e1d78333b8bd682b923093f4c17408964309b771. 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/CAQ520400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb434f5398f5dd31404f20c6c39f8bd058ce765a3ff10061070e62c9bfdef424. 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/CAI601491303.
Le meilleur de Star Académie : les grands succès de l'académie, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb876e65d55f59c217cd1b2cb0950555cb7d09ff2d45ee5e5e0511cd0244e9b82. 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/CAQ520997303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1991309bf73296028a0b47b002ef472e5c7655f0bfad5f455835f707239cdbc8. 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/CAQ520997306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d8f3ba2c9de9823e2f33214d5fb98102be4490956738b9c5abe2528dd418b4. 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/CAQ522144002.
Jusqu’au bout du monde (Don’t Let Me Cross Over)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bc2b2014ace0dd73484f7af5e23ab674764bc9b49a96987efee94626188195. 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/CAQ522259003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21461b0055dca45b5c6eee60725edfc060c2820496c7bccd0e19aaee12249162. 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/CAQ522259005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb29e474a4a85f6fdf449cde77d26daa5c1a83913aaae0abddb8c4cca17ad970. 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/CAQ520900098.