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 0x84284a4cf78232ff797b8445cc62a8a1a7569cd5ed4e0060e481c24d650e33b0. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8440449b-7cf5-4725-8dd1-f7d66cd15104.json and https://artists.proofprofile.net/proofs/artist/8440449b-7cf5-4725-8dd1-f7d66cd15104.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nutbush City Limits / Rika-Pudy-Fan-Dan-Doogly!
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 0x0c26a4d4fbea1a537cbb56159f66b21e5f4d07230332bd1025d75c3aa22aef7a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AUAB02500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c26a4d4fbea1a537cbb56159f66b21e5f4d07230332bd1025d75c3aa22aef7a. 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/AUAB02500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0004f47d114098f49a53789bbfff1dcc0e3d2e6bdefbf62dc95eae9fac53a02d. 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/AUAB02500192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07829f73be9954112dfdc1bda85e631de13d1d41096deea4ba85e543266a58f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/AUAB02500195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfa7277b832cb19533bbe4a98a9ae9e1949d4d5fa98cd9576d09b3aa6db346b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:25:10Z), 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/AUAB02500197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c26a4d4fbea1a537cbb56159f66b21e5f4d07230332bd1025d75c3aa22aef7a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUAB02500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0004f47d114098f49a53789bbfff1dcc0e3d2e6bdefbf62dc95eae9fac53a02d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUAB02500192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778b5f6f08aa98aec912f45e2640acf34c743f115cbd925d3b849a0a0a06d752. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AUAB02500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e72a8dc2f4739bf573b4e2fbfac68d6db0183ecd50a949d198994647ea75102. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/AUAB02500202.