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 0x0cd7f7e98856ac0e96e729ca086e881d11e8dcf6d1c356b9f8541fe2b0f9c2df. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a749db5e-0a14-432d-b03f-9aaa3396114b.json and https://artists.proofprofile.net/proofs/artist/a749db5e-0a14-432d-b03f-9aaa3396114b.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 0xdf8c443c6530c6a7ceef485d7bbbe716f282077f0aebe912d298f3423dd8c2b6. 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/JPZ921714979.
Seventeen Calls (#Just Sound Good 2020 Version)
Seventeen Calls - #Just Sound Good 2020 Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ce97646766dcf63919309d51f2db8524f5d44cd7063f577ba935eb1cbfcf73. 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/JPB602102219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5775f9913d4fe7a26573eb0d83d5fe0aa29cc01c3c55899a9a36e7a4dc9b5d3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPZ922204390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb719dcd04011526322a8d6898182e63a7ee982158f721a0c6511289f73831f7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB602101838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7bf450ba708b87967acf59a6c9d85baa5cbb98ecd7ade4df1317ca492cff2d. 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/JPZ922113056.
"JAPAN & ASIA TOUR 2023" TOKYO - Live at WWW X
Sounds From The Den EP vol.3: City Pop Covers
Sounds From The Den EP vol.2: Acoustic Covers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677ce5c6842613acd298871a37c4598cc5cb51f394fdd880ac3a33685bcc182a. 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/TCJPF1729703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62ae662d507798ce08116102190c8fcb1a1b15eb70da0a5039f17fa4bcd7dd0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCJPL2034668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e504c090655da54c82787e73db3f3b8ba0e27c3df7fb20575b4a746efe3edb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB602202810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28439760eb5b77955afa7708ff09ba5d9fcadcc255e4e430ad4e84fd9eb0001a. 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/TCJPL2052012.
Deep House Top 1000, Vol. 1 - Armada Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677ce5c6842613acd298871a37c4598cc5cb51f394fdd880ac3a33685bcc182a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCJPF1729703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677ce5c6842613acd298871a37c4598cc5cb51f394fdd880ac3a33685bcc182a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:57:35Z), 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/TCJPF1729703.
Take Me Back (Remix Sessions feat. Michael Kaneko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a4c118228d49028cb7c86ee8c7259ecce8bf3b0b29b46e8532821811b8fa14. 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/JPZ922310014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a5e2d71db029ad5e63008690d59497159def79280cb31c8c0ae0c0d094b630. 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/JPPO02203673.
Elastic Afterwords - 2023 Wax Alchemy Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f6b460ae858de9dbb411c5a9da47be2df68f54d007459a0b679204c598e458. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/JPN752420011.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5354b033e136b0eea817594f118a3b87870a5f0a1d3684138665f08ec3a2db02. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPB602003193.