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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b2d6d1fa41d0c4ae5ab171489c825a5a73aa27a1c28e7646ae65adf15366f9. 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/afbf86b6-bec8-42b6-bdab-3661c9234ab5.json and https://artists.proofprofile.net/proofs/artist/afbf86b6-bec8-42b6-bdab-3661c9234ab5.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7119161cd5f3f0f61deeb9682d1e199e866a59292516875668f927bf3139e81e. 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/SE62M2122857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3783b3a5d61bd4e4d756c829f0558d040c854a7813567a932b1864bcbf9132. 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/BCPRM2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335053e1d8d16449b8a9d72114d68c49bb484aa4ba639416273440b9e9630081. 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/BRXRM2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45ac0d53ccfb8e1e1ae470c7ffea6cb823811bd389c16f8cca5354c0da17a57. 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/BCPRM2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110e3d2e6c196545b014bb66ebd8a4a404bdd6c02afb7a847662dc1d4a98021f. 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/BCPRM2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171056444b1cd617ee03ae8eb2b2ae7011b6f2953869eea4aa96f9c1aca5a454. 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/BCPRM2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd030a8effceac24bc0318b61a266c69a10465212f90623d7f4d6788ec50fb2c. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:52:51Z), 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/BCPRM2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3783b3a5d61bd4e4d756c829f0558d040c854a7813567a932b1864bcbf9132. 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/BCPRM2000001.
Pedro Beydoun no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2618c4147b3a3d85575c15a32b28d1e94e941d5adc113e7ea88264bfce0b5aa. 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/BKPEY2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaec6a137a4e822003f5078252c7094ef1201b1c19b10ba955b3200a312118d7. 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/BKPEY2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca87b057e6b13b5bd469d54eb184076057983a5825bbc0467d9f3e002e16ae3. 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/BKPEY2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f972546aeaca4849055a79ce6a89be116401859474438f6e052d40ff32c198. 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/BRJYP2000004.
Tribo de Jah no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2841cf6a78098bb7c0f8e24a5a534e12db62a4ca59f9e39bbfdc256dc99493fb. 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/BXSSW1802189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa9e1347af1e7baf05dcb30f110088fe00cde2cc056dd088cb45e05d34a4292. 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/BXSSW1802190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a855eef67124e57a394480d069f23d6cd4814e65800b7ffad6fb72ab73a26d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BXSSW1802195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a35194967d4defef66adfe42f02dc82fb159b6435bfab44568209eb7397df5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BXSSW1802196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef066971fb954c9b3c1acb4c061151a30311814aec43e541aa0574d31bfbfcdf. 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/BXSSW1802197.
Tudo nos É Dado, Só nos Falta a Fé - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22fb174b3501bd4c9fcaa8a4f363fede4d565bba0911f96554f00bc5bb3c565. 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/BXSSW1802198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef1f1bd04a43b4fe711bc115ccf404c4ba536a34d84518898bf7c16bd88fff8. 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/BXSSW1802199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43602207a67547525cedb31b70c48032607db6cede096fdfecf650293f8895f0. 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/BRJYP1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e2a2473ff3dc7d9c3779f0545cdc8bdfe8719af893587cee2ee7c5b48df11e. 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/BRJYP1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2430121f71f239093200e698823c3adf04edc9b63e545a956b596a4af00fa3dc. 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/BRJYP1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6613ae01cd96cf9a433a26d595b14e4b1c5e47b8de796e7a6537dc337296289e. 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/BRJYP1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143b4fef00c641095e8468b54dbf6cb5b1303072ec7fc9f3664484732c689fad. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:02:15Z), 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/QZHZ51957512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758f8ffedee6f835e4fef533c6956c67e83d107fb8d2ca107339abdd1bd098ec. 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/BRJYP1600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1112fd78e86bda75979c32be3191224a71cae505689e6239816bf37158c1489c. 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/QZW9L2306029.