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 0x257249728a6e474fb72449e3b3ca473f9debccadb3db7ad781af186ca4cd17ea. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1573110-c5a1-48bb-a757-3d395e322d93.json and https://artists.proofprofile.net/proofs/artist/a1573110-c5a1-48bb-a757-3d395e322d93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Your Faithfulness Is Great (feat. Deon Kipping)
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 0x46db9e3ecd470797870b8ecd5526fb7d699dcb18c60fe1e09eaca661759f0e4d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDHM1630322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e65b90c9cedfe44389dd7cfb466256fbda40575e766a3b7c74ad64b2e598a0. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCAIS2410113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e097895305fe2485a80e973c06349673a1621512ce4189e67e26a77d5cf66f7. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/TCAIT2423551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48901558bf0ec2e2f830dd29750dc526bc95ea04ea2bdcf9698e2664b6bdfdaf. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAIS2423579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456c31ae77cb43f6aa42c1528e897475b56434e3b78f88f3e438a8f9e3643508. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAIS2476026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fbd20a4f28bef500124395a924b459f461e053afd72c4c7a784702feef0706. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCAIS2476188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44468647defbc2b296c3ff0fa46bc82e2a6cd71c9a662853d82817c4d561eae4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAIS2476463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9e732fad9f58acbbc9ea23c82e282f024f7ea1ca86e8efd92a39e222abd160. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:57:30Z), 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/TCAIT2495918.