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 0x986b783b90801fc785c026e0bc2c39dfa8a671bbb466fb3d75e3ea6e297053b8. 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/68ad6edc-e5a1-4431-8b93-685b2602dce9.json and https://artists.proofprofile.net/proofs/artist/68ad6edc-e5a1-4431-8b93-685b2602dce9.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 0x871d0554f681934e389cc8cbd63cff7d3fb8f0fbca6014a09bcffeb3012e9877. 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/PHV032111393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308d642d72714b736fa1514ebcdf556ed2a37ea12e45f45327a18426e6e0c557. 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/PHV032412865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561fb29a0cda464f98396100dc44e28bf1d440da98de5d32fc706227f1d11213. 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/PHV032312620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2941a1e8116f65a415108522ef447049661b33b1bdfaa575992e16768fd42954. 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/PHV032212044.
Balik-Taya (Original Soundtrack from the Vivamax Movie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bff85c40f27c9f1cf150ae1b228b8b9b0d290844280c66f9528c331db476ca. 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/PHV032312276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871d0554f681934e389cc8cbd63cff7d3fb8f0fbca6014a09bcffeb3012e9877. 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/PHV032111393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7334451f5a952dd0d68852d283b88c2f3923c792ab4985b994ba7c9438c6648. 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/PHV032212047.
Iskandalo (Original Soundtrack from the Vivamax Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c78d679228c3c97582f7853bce7c58fc641703dcca5090e0f5b90d23848a61. 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/PHV032211939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6392601b20b89bc82d03a2aa5392b5922693dc4d01d4fe05ea44d5d37a8523fd. 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/PHV032211920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bee73547b7c780962d0066a7efc4089915be2419b36a29b52292d4979741dd. 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/PHV032211927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6392601b20b89bc82d03a2aa5392b5922693dc4d01d4fe05ea44d5d37a8523fd. 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/PHV032211920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fc852690de3684d1cb50b8f20daf5ee5f429a0faf328365a8bff93c4b8fbc5. 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/QZFZ22056475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d587597b724b9303c7bc46fc8fb38312a614ce08f562805e7dff8347c76fb7. 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/QZFZ71903601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca69753a9071b0da72ca3f7ceb5f6da51cecde548179cd4d3ddd3baed405a06. 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/AUBEC1925839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6932bed0692adf6f8edc1ba8e08d10238ee13ac453cedafa46cd3a25ffaf360. 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/QZFZ52041760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0432e858aba7caf1cd8c3478c2e33748b1b576869b5f1c8ae15ba5d15cfb516c. 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/QZFZ52041763.
Sitio Diablo (Original Soundtrack from the Vivamax Movie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5164393e7e254fa9914c4dd2e2e129653ca47163ba4433f51b6c7d651d0cd82d. 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/PHV032212043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2941a1e8116f65a415108522ef447049661b33b1bdfaa575992e16768fd42954. 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/PHV032212044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0498c2fcac16eb67175608fa0a7dd61569e4baccba11b42d336bbd5a05d1d7. 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/PHV032212046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7334451f5a952dd0d68852d283b88c2f3923c792ab4985b994ba7c9438c6648. 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/PHV032212047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a56009c596cc784b6c1da88d0a9568194b8f122a60b4d7638a164f6dc43b2e5. 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/QZFZ72083718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fa8385ee62ea2c14e0c859725fb60369842c06fd315053ad7ac011ef99df23. 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/QZES72003464.
Pornstar 2 (Original Soundtrack from the Vivamax Movie)