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 0xc749fa001d4956143fb8f9ce6232610307371d123dd9d4fa5c095bcf6067fbd9. 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/d40cb39a-ab0b-4893-bfaa-98520db99c5e.json and https://artists.proofprofile.net/proofs/artist/d40cb39a-ab0b-4893-bfaa-98520db99c5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All I See Is You (feat. Karen Rodriguez)
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 0x4de1d4f8fc5df6f4b85946dbbdc77a7cb8197773f92da312f8dc9a6be7b2515d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCACP1689492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643e97b3b012a57365d6753ff8a22b1f1fc6abc3f2d79405128ded8b016c29e6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USUM71900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414c1310e8f6f829d5dcad3ee7834788c5d078dec40feb51b928427148efe526. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USUM71924390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643e97b3b012a57365d6753ff8a22b1f1fc6abc3f2d79405128ded8b016c29e6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USUM71900201.
A Spike Lee Joint (feat. Anthony Flammia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318e8b7d599ab1a1848a4996f76786d9f59e784ea05179adbbfa520749ad7b2e. 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/QZ2D51600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4d5eeae85a3b835b4115645e55266b6c3cce4a2e327ab5084b0e6e28390a00. 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/QZDA62472225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff93332a2fbb907f6a79c54e18426e2fc865024546ce8c859ff2e91051f58b0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1319454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b963eb860d40401a4b720590a20fa14da39fca4620039f54d5d147d20ac10e. 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/QZRP52107847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b963eb860d40401a4b720590a20fa14da39fca4620039f54d5d147d20ac10e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZRP52107847.