1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x55475b071e9ecdd7275441fa649ab02007be6eeb024ba456f95b5e4426d0300e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f46d1922-2355-444f-b9f7-63fd39381b18.json and https://artists.proofprofile.net/proofs/artist/f46d1922-2355-444f-b9f7-63fd39381b18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Château Bruyant, vol. 1 (French Bass Finest)
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 → block OTSBitcoinBlock must exist at that height 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 0x9c3003fb7d07a65f22ea180226d7225eae7b70a278b780220e34d1b50a7bda42. 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/CA5KR1559547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea898e2350350c524f7194406e0425970aa4001d852f63ddb19ea886b2cc364. 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/CA5KR1559549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1dcfd5e93d915e327093dab6d4f64a2f35b7ef5836e4efda3be52075a6563e. 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/CA5KR1559550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a77cacf63697fb545b448129b99473de6f6d5d7b21eadd90f27d9d2a6ffb36. 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/CA5KR1846086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6389ac4c3eaf023f6ee7cd2d93656c7e38fc2f7dd4a73550c48b99644c7e6d. 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/CA5KR1846087.
Don't Believe U (feat. Yukmouth and Pretty Black)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39d0cc027e37d9b70c2a7cb3efdcfd39ba0429077cba4beeb253819d9c20c3d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USBHD0801175.
West Coast Connect the Compilation Vol. 3