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 0x9415b32e62c23ced607f3a5a94fd41418dcb04335d4d4fcc78233c8f2f257da1. 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/73472faa-5660-47f0-b800-c4e0c429eb43.json and https://artists.proofprofile.net/proofs/artist/73472faa-5660-47f0-b800-c4e0c429eb43.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 0x4f8e4e56480ea2a453ccb801e5cb70ad607dfb5638308ffbc7e6730229a6bbf7. 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/QMBZ92310493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88672482512e4154c192aaa2efb654144bc160d21a5ff8bc105b9255fc7b2f8. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:26:47Z), 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/QMBZ92310496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88697bb2dc2676587f219a9b9ccbbde7fa11155e8a62247f0e8a812ab7e0c2e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM7282300751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0539656bb2f31123c5a6dc1c4f91b82d7ba477e1aa7174150c663c31a68369. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMFMF2308679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4b917c7272ce05e0432c381efb18325e79a038672f47a3c953d649f80e694d. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:23:37Z), 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/QMDA62346725.
i just want to hear your voice (Stripped Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4ea529182b2fc2762013e3d108bd6b1056dabe3e04fb28f029a30018839740. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QM4TW2498647.