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 0x46e3ca9e9c3da1a47e49c7a377ea19c484e612a4637185c24808e86ffe1031fc. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59b06c09-8455-4106-90a9-9c0f1f350792.json and https://artists.proofprofile.net/proofs/artist/59b06c09-8455-4106-90a9-9c0f1f350792.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 0x26f31160ec3c23aa9d89018dd1542a4fbb03fb0c7dd0424f5f45ce78250c0d2d. 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/CAA502146101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5cbf640edf023e583d48abee50414123ea0e833354e30eed701995a41391e6. 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/CAA502146103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5690576ee3d8ab8e195f3d6e85d1b0151e59ca5fc177c541bbf55c12d21ab1e. 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/CAA502146107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866276d3b7b6fc40b94995b5017d885b66200e43293e7dfbb11875c123fdd1ca. 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/CAA502146108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd462cdee0f2f3ff775a7c68894861234a2044fa71140e294c5966b452eb467. 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/CAA502146112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5599258c74d370daaccebdf9cc87177c70db5987224194241fff90f8f015783d. 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/CAJ621705001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10b00dd89ac14739f4053f0b82adb13ddd775929d52e8ba988211281b99bdf3. 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/CAJ621705005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e0889e855a4e53991674b5507a00f4c09e5f6562989d1fe09e3f9cab22096f. 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/CAJ621705002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbbcf039b70659217b0a9b90b7a68d5ed40fcd97fc6e5fe05133349168cd8e1. 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/CAJ621705003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f746669b07ca44642d82c291193f7c43c39ab2398f600d18eb6d7b2ef53ed8b. 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/CAJ621705007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c775e704c38d27bbb5176648c77bc360215f3a33595fb2eacfa1ee4cca877b. 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/CAJ621447003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15f9cf816f076bf47987506eb239477c0698a05d0b0bb2e35c8ce5dd88f56ee. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/CA2MH2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5690576ee3d8ab8e195f3d6e85d1b0151e59ca5fc177c541bbf55c12d21ab1e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CAA502146107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49497640a2cb3dadb5f79f13133236ca412e65248ae0a942584e9242299dc4ba. 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/CA3HQ2001001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64ef8418b31a020586f16a206b448fcba5d011a7b6b9dfac81451646f313f2e. 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/CAJ621802002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa03ce281d2cd5fa37454a262bcc102f6adfa52c6be901582f84c0de0d0c5926. 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/CAJ621802004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee1aaf30a999cecec45393a6f65a818a09d2c35aea5ec8ba6a6623cc2470599. 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/CAJ621702001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a8aac3c6d83c983e9585b5b4b408813e1eae509d741753b7e5e0719c0c22cf. 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/CAJ621601001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e42e70805933ad44d59f3b22b31aef1abc151a3f10ffe050a48361d281b5af. 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/CAJ621601002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb55fc402ec8610c53c66e221637650a099dc79060248565ddc023463d66e7a. 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/CAJ621601004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c41a1563094b864ab0ae72737a188f34fcb5031e6969e48c053da50df59dc56. 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/CAJ621547020.
L'anarchie des jours heureux (chanson thème Le chalet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb906e6c635e81febb1f28ad88507879da8d55e9aafae77c5ad997c196f715510. 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/CAU7V1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c41a1563094b864ab0ae72737a188f34fcb5031e6969e48c053da50df59dc56. 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/CAJ621547020.