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 0x4fa7f318751ebdcbe8491b3be012b02c6a0e24388ed912daea579d1b83586d7e. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b09b28a-07d8-44bc-b167-0918be197b86.json and https://artists.proofprofile.net/proofs/artist/1b09b28a-07d8-44bc-b167-0918be197b86.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 0xd3ee63ffc256cb023ce71798c9155e11a07f681e30ce20c554ea273ab375e493. 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/ITR951200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf783328498af5bc02d7a03b567b502212398dba8025ed3802ad7ffd856bbcd6. 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/ITR951200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dccd869d4bbb1715ae51066f49187aeab919b1b5f5a6e31be7213a0ec0085f. 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/ITR951200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9797d47a6cd17f68ff7fab6ee6662c5a4c827eddb396b264784d010456e0caf6. 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/ITR951200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31b4a910e9c9587676beaa9c37baac77f08edfb2d8830c7c77a21fe0d2199b5. 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/ITCUW2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754f34a86b16e78e041f27755baf4cd1886866da347a935a6b8ffb3aa51e0436. 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/ITCUW1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0033639d88448283b0f62ec9fc73ddd521e415cd15ca286a8df471fe851a23d. 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/ITR951300005.
Christmas Time Riddim (Jingle Bells Reggae)
La mia squadra del cuore (Inno Ufficiale Lecce Volley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd617e1e3923cbacd0b4d598ef193a5542b3b350f57af075518a4f35084970bf. 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/ITJ511600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6ec802b292205210607069b381f4c18054851282dda58b251008d57f88b182. 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/UK9FB2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747bf718933977235648a9f733cae9b9df328c9e1c03b5dd99478337117d38df. 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/ITT151000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2565b375fb1f47d7dd7c919031e297a2e0e6afe155964ad1fc4101ba70a28f. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ITT150900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ae281b755d0092bd171717cb6e4341e2be3aa5e3c8b95bcf0e973f281aed34. 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/ITT151000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcdb70c5ce5e73ed42ccfbad0ac89a35a9d4837cd9ef3ffef671d3c15b447c0. 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/ITT151000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8bb6c2c1cfbd4cf37bfc4b2e0129762ab5d2aa84ece208e2a3dee78a260726. 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/ITT151000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775ed94a0d176f96fca675ed89c576aa5a68175b2305ddcb1ad8948cff5f6872. 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/ITT151000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa56ae627c2dc595eecefb9127c80ae35e2bf351c716289b1680a4d78a3ae124. 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/ITT151000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1848cd58bd4e90bb12dbd4c885e29100bc319af10851aa05ca6e18a5aa6b18f6. 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/ITR952100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4108ad90bd25568b7c422ab6ef250a9873d29854a5b8a181b58d47358a7ae118. 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/ITCUW2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2636c600cfd65f3dceb38c3e7abd6c6d6c092c906fc34ccb73000a83644469a. 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/ITCUW2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42118626caaac821b6345f242a82827cf61729dced64479a8986ade24913832f. 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/ITCUW2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba98d8ff6239d402646cb260b78c1f1051b15e4d1e3eb77b83725118245702ca. 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/ITCUW2400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa79f6425b8ff632d28a172ede6de44d97ece694a908d52db59c1f6e7973db85. 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/ITCUW2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e9bd6d8b0f16fbfcfd24c210d637b80edecbc372cc786d30ec8d20d41e4c54. 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/IT10L2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd642f633a46817d6c0f299195ac4d35b95f800fcf8f0388c23ff731ffd134960. 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/ITZ4M2200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa155b34b75711cac9cbdc97d65671e1c3a341b76b6e924192f34d14fbe5c463. 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/UK9FB2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e3e77a0251e7bfc1d63ab7550aef0808a90339731e4f2845ba2a34667f35e4. 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/UK9FB2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6ec802b292205210607069b381f4c18054851282dda58b251008d57f88b182. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UK9FB2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91835d576cbdab939b615854871ea1e96457818bf5870fcfef453dfbc6cf383a. 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/UK9FB2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b7a193ba91b94e0345dec5eb541bf7fd61dc91cd4d0b6bbf56759d9cd14b0c. 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/UK9FB2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b30c41f63d563dbb02774e34cf95d73c9f056869d441257f09e51e349bed0d. 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/UK9FB2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e32b6c787851005969c3c112cc6d14e2237b524b55ba2599515d74a3484f28. 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/UK9FB2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f779f8cbc97aca0e61763f2ea35c3afcad5e0938138329c952ddffa976baa2. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/ITB2Z2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd763abc8197e0c97c82ed82432d314cd200b21c7a17f91be108cfa40b48b9ff. 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/ITB2Z2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df30ee7d8e41a5b3f3091d0a8ff0c7b18f2844aa15ed34532e09a4101a70508. 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/ITB2Z2500007.