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 0xdae8383085b714e64b3c21c4b7cd39dcdf5779aadc14da66c2249ab31b5f2376. 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/af8a4eed-7fa2-4da4-9d05-172842dcb318.json and https://artists.proofprofile.net/proofs/artist/af8a4eed-7fa2-4da4-9d05-172842dcb318.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 0x4136db000e1ca2273aa0ea8727d42d0677daaeb3258e8faaa92a26fbd251f7d6. 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/QZMR82200374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee8fe9716535e0c39e19b850d899893bc847cfb344f2e275f448fb17d512936. 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/QZMR82200366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4808a16391febbcb40221dc63b9ef96712a4f50b5114e9fc55dd89159b5f52e. 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/GBWUL2486375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f123509d3d0b8db8693fef64a56e8c781b2b094420dd2ed5f0216bfa2f6f2a. 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/GBRKQ2425606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889eeeeb2136ad781eb5076392f3f701e3cf3f5e04644bb4e938127f07654478. 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/USLZJ2438303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522a95d5490ee0e581443f72a278b0a30ebdf22c2eebea8e36e7d7338513a043. 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/QZ5FN2482796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907c2c07faaf38ecf93f34220f0d6811c47d2eeeffa21ba44fbdb1ed0c49623c. 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/USLZJ2319803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeda6ea056dd871c72d55839c27e9c2b17398d9a2e69717ebdea3739ad517ded. 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/QZMR82200367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d0468ef33782446c85770e13c953eec36cb50280a951afae74423ff62da556. 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/USLZJ2566441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee8fe9716535e0c39e19b850d899893bc847cfb344f2e275f448fb17d512936. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZMR82200366.
Chukito No Quieren Problema No Quieren Morirse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967aeb646ca33697cb7e907b905ddc34b51b39ff64687be6711b40ea07002762. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMR82200369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7afe9763995c76636f9ae430c2862ee74ab3f0c2b55c0fe645c0ab8a5f59f35. 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/QZMR82200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad07ea922231626147b7264b0c3a26b6b850f1ca1baf43358f17cea909232fe. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:25:47Z), 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/QZMR82200473.