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 0x311365d1965afceabcf7e52cd81d3b964d9437a83941cf34de44c4382e6c3b78. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/287285b0-b45e-4be8-ac04-822afafeb30f.json and https://artists.proofprofile.net/proofs/artist/287285b0-b45e-4be8-ac04-822afafeb30f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x744eb0a4ffc2ebe5438b30259d75a3634f16b4641e4a353f6780294675ccf83b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZFZ62564913.
Unsolved issues (Nope youre too early im still alive) wifiskeleton cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e0436b5d7462a3ecd3292ba66976e816460f148e60c5f17674921c90074bb5. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZDA72536283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bc78ffbcb141fbf645f11b4010b8937616783587ed0e34b6e772bf6310d44f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA82555997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909e6a0766c5f9ff22c9f423c721ffa00db623bf0cc9a3eaab0ab8e721237f46. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES62547754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920182dbcc35d9791cbe89bfb6f26493d009e98342de8ebd8ff50dc64fab0e29. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHN92532161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf254e3649a4df664f32f010adbe11a4d3863a80f0458dfe728bca95f36920a9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:24:25Z), 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/QZHNB2545154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa984019cc6e7c3b951287adbc09621cbaf3c8fbaa872ae0dcbcf7be9b0f03d91. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:34:33Z), 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/QZK6L2580460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb63b7476682a6a8ef30372fd05b2fdf5ec9318270e133e106426432b632a68c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZPLR2525783.