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 0xca0df900b03de02a53dec73f7a6fe3f3405a0c05aba4e436e3e447ce1229715e. 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/9384e441-c112-4b68-93d9-07fe627069d5.json and https://artists.proofprofile.net/proofs/artist/9384e441-c112-4b68-93d9-07fe627069d5.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 0x76f50c2f9facea0dec745b0c1764e2abe3cbda2e1b58e8c28cd262b6d7dd76ef. 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/JPS809903614.
BABY MY LOVE - Extended "coffee break" version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e3b75dca1d66f1ecce621baa689837b9dafafd418f2d2f8d20e4690c9d5d8e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/JPS809903616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16cc6a287e652e25982cb60112163f45c87d9bbf61ac3a5796a8c2b32e62c0c. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/JPS809903619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964ebb33685778e8dfee0f95988b65079f3c773f2ce2e1cdec805d032a5cf15b. 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/JPS809903622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d0099ad061b46a18668d441768236f91490f231e70d300a63691797d2597cf. 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/JPV501700710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6e7723ba6b1444b92d655c254879134d545d4ee49556bf4079c8797b5fa062. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/JPV501700711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448fcf59b410a0ecafdd83ca6a04aff825e2a34479162bba86f2f1a4cfcee5ea. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPV501700714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae686c3dbe6db13bfca543889eef040e61c2bdfe5ba3d5959f943c0fa2b25cae. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPV501800621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06467aa0b8ecfcd10d48a8591b4990d191932d519a03e12b0edeb064bfa5b3cc. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPI1974266.
ゆめで逢いましょう ~see you in my dreams~ <Remastered>
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562a76d34ab941bfa4e7165df50e6696aa1126c93c9cbe65fce479b82bec8c79. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/JPS802100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5deb41323c02b1fb62afcb55170b1798a9176d8c5d56d209d0dcb756d96eadee. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPS802100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae498a735c4f8beb0916cc9a469e0fe68b3323c7d5c643fc74499fd5541c16ef. 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/TCJPV2361129.
Above the Clouds (feat. 長岡亮介, C.O.S.A. × KID FRESINO & asuka ando)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860e7969aa3ebb547b3cc186ebf9949352a558b4557de75b894dcf721de7bc6f. 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/JPJ901808590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bd22f41295ebaaf23833490f443bcef923d0bee5c7c564864bc0db5101bc13. 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/JPS801837804.