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 0xc1f3636e43e34138de7b084246ccf5c0bd38af573c5dc55178e615ffdd9f4beb. 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/b8a7070b-3847-4d8d-8b7a-06d0f7043ec8.json and https://artists.proofprofile.net/proofs/artist/b8a7070b-3847-4d8d-8b7a-06d0f7043ec8.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 0x84a9be85040232590faf36b407897b2ee0dccd63976427ff5ea035ba11d9112d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWR2159518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0dc21cf70605d7d9880d82bcf63907b49e84fd580ef85b86a9f2c0de820e5e. 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/QZNWR2159519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25025bf68f5266eb7728b70afd47298cc79fbf9072035481b94f690514078198. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWR2159521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b69ed8169576399286efa816833c6ab8e82400b325fcdb53a8e4192d2f61668. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:38Z), 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/QZNWR2159523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dc58f80f2d7a410fd99df2656ccefa400d1bf9b90869795ecc57759bbb86a9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWR2159525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c25fc63b9733df60ce8c29088d4e764e94ad5efb71efb831be35fbf9594be69. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ZB3P92400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a94e83cefa5f17a93a59440dd3dfb33adf999e5391a2f85e6c46442ffe6223. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ZB3P92400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eef78bcb4f0bd98358ec1485c63b4699fa51b4869addddc21c0d8f3b32f154. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ZB3P92400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb317fc3e751f7de1718a4f344f29a9e71c0bf995740c47ee0d839bc15356f848. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZB3P92400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2057e230cd7c187ff2e66597f4bbeb169f3d2ad9f0ec51b18840c5183d2e862. 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/ZB3P92400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66efd49d8a23e584cb0592efc9d8afb16c828c8f7f800fd05b6c1dbadd0e7715. 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/ZB3P92400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3171ae582a07c1cbb9ab61494e18213a4ac32474325692a64c85bd8d7e3d16. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZB3P92400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b52bf2e2c09586b2873b69c327d4d4167a61ad972725ce150bd45402a8e922. 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/ZB3P92400004.
All I Want (feat. Kelvin Sings & Katerinah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405e886c5fdb1e33f3f48d7e6fafb2bf53707f40adf7454682beb40fabea3a9c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZB3P92400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c25fc63b9733df60ce8c29088d4e764e94ad5efb71efb831be35fbf9594be69. 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/ZB3P92400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7df1190daec3eccae48b307f9b2d15f0816229ee68892e8061102a54f9064f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZB3P92400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5748f94cc8106e109871ece36f0217f60dfe30db400e52ebe594120c761c5245. 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/ZB3P92400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92508b23bfcb5905e9941764dc56ce6d7ef20ae4134ff7f33adcb2f81c45a5a6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZB3P92400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73da172135bb8d29944c8dd9c918ad664947ee7ab73a02a0726ff18df380912e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWFH2330378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a94e83cefa5f17a93a59440dd3dfb33adf999e5391a2f85e6c46442ffe6223. 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/ZB3P92400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eef78bcb4f0bd98358ec1485c63b4699fa51b4869addddc21c0d8f3b32f154. 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/ZB3P92400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb317fc3e751f7de1718a4f344f29a9e71c0bf995740c47ee0d839bc15356f848. 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/ZB3P92400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc13fc116c0ec70f5b1771dd8e190835aa4dce13222ec2a556482ede923d3c26. 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/QZMEQ2218429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba152ebd5eb05563bc8ce35f09f2f39235aa7b96641356e611c66b03edcd5681. 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/QZK6G2459278.