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 0x79a2ec740abb622c9b06d09b48440dfebef463a651731ce7f19ca8cd23592ebb. 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/9c6264fe-de5f-40b3-b1a1-a05654a20d58.json and https://artists.proofprofile.net/proofs/artist/9c6264fe-de5f-40b3-b1a1-a05654a20d58.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 0xdd85346db8b4a018c68ffb379db0f06779c2fa35910342b0093ed78422c2de3e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:23:26Z), 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/QZ22B1914856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6971968056705393cef00ecd155a8cfdfa569c54811c1e64db44276236d25bb4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ22B1914862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbcc07508754b5d776a8d17d567c5ddc5ce8793561c1487b47ed8821283cab8. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZ22B1914854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6971968056705393cef00ecd155a8cfdfa569c54811c1e64db44276236d25bb4. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZ22B1914862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1824a2064092857bf0c858982d5305bafdbc31ba40b56e686ee733217f5ea6. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZ22B1922828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995479811422d6ad1891d1dccfc4dccf552d7f876d39490bd3e4407dae63aa04. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZ22B1922845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1824a2064092857bf0c858982d5305bafdbc31ba40b56e686ee733217f5ea6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZ22B1922828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe463175ed055059b87b46a5f9fe4abcf9eba3755e16bdc82fb19c5868c1e169. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZ22B1922830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7d12c8e1d0a53fbcdaa7aaf2469dada2765b3baf3d0e52e454cd6997c6baa5. 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/QZ22B1922831.
Ecos del Paraíso: Melodías para el Alma Católica
Faith And Testimony (Instrumental Version)