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 0x769c39de26f9ffd7ce96d50e646ef1a42d2ea6ef6540c740ccbbc6439adc59fa. Chain 2 (Bitcoin): anchored in block 953662 (2026-06-14T17:28:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5593a41f-1631-4744-96b5-a7c841b3e8d7.json and https://artists.proofprofile.net/proofs/artist/5593a41f-1631-4744-96b5-a7c841b3e8d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I DON'T WANNA HAVE TO YELL FOR YOU TO LISTEN
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 0x34fdc3ab079092c1bcdb9167ef5d00015e6fd1612c030a8d24a988f961e60c8e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6F2428272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062166fb712b670a3e2fd0ae28422604baa51d725993404a3b197c9b9f9829f7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZMEV2264303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccc6a681b98d3b960b07a67cf9dbdf95c7bb9ea189d0fdf60c593c1ca37a1cc. 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/QZLBC2200496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22968c0fb039c928bd5ae25fc3c89d1de5fda5a489f7364cdaa0989660dabbe. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/BE5IT2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c22914e8c307e1dd66d9e32643c278fb82bd095bae0eeb19deaeca514093cfb. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:54:35Z), 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/QZDA42547474.