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 0x450cc842f66bad48288b7269bfbcaf4e09388f997b183d1a9c8154b602afa943. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dba285f7-949a-4007-b0ca-f3a2cfb884ae.json and https://artists.proofprofile.net/proofs/artist/dba285f7-949a-4007-b0ca-f3a2cfb884ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Full Set (Pyramid Country, While I'm Waiting Here, Little Maggie) [Live]
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 0x410faf6ef506f98c5906bf03046e10c4fdf0e9532d9913e3417da3bb3f1297ba. 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/TCAEY2054112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae7ca756928e5ec7f9ad275f9aa96f966c5dcedd07c07dd8db8392fa32f49eb. 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/QM99V1801301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aced09f04fb117d2af482aa2c70e81f1da957487114a4a57cb6b1831e9959c5. 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/QM99V1801303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1284d6d9267ffbd210599eb0ddad5a54d3527359a895653062fafb0dd49cfba5. 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/QM99V1801304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527d3ea4db4a5e4fd4802ca31b9e0ea22b37d64517bd53c68d1068d3b7bc7237. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM99V1801305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b05a8b65be8f2aa14c31b74f3e50bde9f02096c81f3998ba6cefc96a41608e3. 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/QM99V1801306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce001621ba6ed0925a99e4cbebe8b7e2f9f7707b995c5ffa7371d0a251ca52c0. 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/TCAEL1903037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed7c730b1bdb909b6361f94513796f8d5ea0e986a17f7cb77bbffe6de80eb8b. 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/TCAEL1903045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32036e63e22e2e3621f71eaefda3992a529cf7cb71f65b3e31ad9f2a0b956bc1. 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/QZ4JJ1667247.