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 0x5ea5e1bb6dbd9f3a04d9783e60b94594d22e26e8156c674fa0d89236de9127c8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78e1dfde-0013-4826-bb30-b72d3b186d11.json and https://artists.proofprofile.net/proofs/artist/78e1dfde-0013-4826-bb30-b72d3b186d11.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 0x898e7fb5a22cc0c443d6b02d3b926253233f07aed851a9be7a5e3ae776dca041. 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/TCJPH1877947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b3824def65f19a80fdcbbe6f8b38779682fe2504bc30501d67d2830b622f94. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:07:41Z), 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/JPH372100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e16adf4885c73d12e88fae77f3bb78d6e993b7a62947b6cd6ccc9a9f72ae510. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCJPR2231330.
CALI LIVIN’ (feat. Ring Da Bingo & MAYA)
CALI LIVIN' (feat. Ring Da Bingo & MAYA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58974fde850c52a9376a0b9a3b3b5244dbf9ee4a75e24fae05795515390c6bab. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/TCJPC2400387.
Cruising feat. GIPPER, GAYA-K, JOYSTICKK, mai [Non Stop Mix Ver.]
LocoHAMA CRUISING DJ PMX THE GREATEST HITS MIX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed8bd7c30707b7cda4eb38b1a6bb7ecac83a5a5b388f4a5b646e26d41b3811f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPVI01404410.
My Angel feat. Kayzabro, GAYA-K, BIG RON, 詩音
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fc997f85df790c268cd9f7776565175518d0b804f3d5e70b951663ef97bf4d. 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/JPVI00833480.
Sakurano Hana ~Mother~ (feat. GAYA-K & Licana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6df7d0b8002b54daed18f0aabc644a1dbb8e698d51145493b06f45c0f26bda1. 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/JPY201203398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6df7d0b8002b54daed18f0aabc644a1dbb8e698d51145493b06f45c0f26bda1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPY201203398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d5b95d29cabea7f8b6950e19ccb9696be69951c480cb7f85616253c7bc163e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPY201002212.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch