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 0x799a757f26c739ed00b6e80c36a21118852c2a6bcb41a1884ea9928b1ce1afbf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53652525-ef47-4a26-a3d7-42fa637ccf36.json and https://artists.proofprofile.net/proofs/artist/53652525-ef47-4a26-a3d7-42fa637ccf36.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 0x35c8b73593b3da93583a7491cae5bef3bdbd6afd3ae5267dc4a20de2f906c5c5. 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/UYB282374006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6412b168dcdeac781de083dc3bdcbb27e45083d2a3a63631df69e566faa6a93d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/UYB282374007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fbbd2c04d8bb041005b098339608d84389ce8eed189bc2cd2eeae7526aea5d. 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/UYB282374010.
Tony Grox & Musta - WAVY VACILÓN (Tony G Tapes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100156ec0e7430c1cdc6fb49ac7ded0c5bd498d061e40b190e87f30a5c08d551. 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/UYB282374015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f20fbdb6d17ea8c543d49fe2ac20ed1732886af69cbe26c5c2c5304c9ab3b5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UYB282474002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a01b08560d973dfa8dd1e796d5022c4b9f3dbe4bb5e73b29d9be329a3dbbb6. 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/UYB282407970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe806895b302f134d5a21ddaf1919744e567fb0e36a639adab195f661fd6a5c12. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UYB282451404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcf14a816fad370ada613430d1c47f052e5ed24f56c260ff9688dde2a4ae76b. 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/QZNJV2311769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0439a7e8723517e6a5055075272e3bdd21c57040a349e5cdce8c5daf76380499. 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/QMDA62327236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a214fc777c316c4cb7fedb2e9dd3cb9d61df764ed8387a69a97ee0506624985. 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/UYB282262004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133b92fa72f78162db57d7587a15b6cd29d61f0f9402976a5c8e1775efdc4b31. 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/ES5021901572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8528a438aa030a0968607f956892891c2c522c48a42a502ef2ca3ed0482db43. 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/UYB282410904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e24c1846ea8b8b15acf4fe2d124b3f574dfd6bf850f80ba1256a73a4ec641b5. 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/US38Y2422029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404d30b4e2cf939adf26c345be59ef076c56275a07070f0e9d79102e7d1b6565. 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/UYB282330016.