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 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 0x150f18e74de49231d7bd882362e2d1095e170cfda8dd6fc2f78835310dff7af3. 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/662676b5-d2a1-4a36-9b2d-32a9b4892c56.json and https://artists.proofprofile.net/proofs/artist/662676b5-d2a1-4a36-9b2d-32a9b4892c56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ヱヴァンゲリヲン新吹奏楽版:其の2
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 0x57965442ec0d1814ca23adc94bc56c54e26d37f1a8a480c68c8cd3c8eb8c8437. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/JPKI00916865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c09ea0516f27cef05b47534bde8b4a783142932756735b48bc85c002b0aec95. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/JPKI00916867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd821da3a28c9bd9f17f61cf3cd93b300ca130f75c69f2f430b0f506b4272ab74. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPKI00916868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a143c62a6f6f1882c8c39de0893712a80db75a9c74a5943fdb5f52cee352699. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPKI00916871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5afd44273e19a297d15e01f245c477ebef0675645ce97b140d5a3d776fa1704. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPKI00916873.
SuperSaxPlaysEVA_TributeToSuperSax(medley‟B16_Soli" "B01_Solid Blues" "F02_Soli,VoicedDrums")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52181d0e9bee2aa98f4a3c169a4c20567650752d358858c3c1b37b18eeb030fa. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/JPKI00916877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73944362203344aac4f31484b7dc0bf5e20ea59cf394d0b372911b7fd721660a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/JPKI00916878.
B12_ForPianoPlayback_EWS_Amano&Kosei(Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c7c39fafdbea61e42018596762b6aa8a56d872bafff2b534e5b6db205d84b4. 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/JPKI00916879.
ヱヴァンゲリヲン新吹奏楽版:其の1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0624ce9edffb124adc251b8c91625978ddcd817ce6b6a0efe349b7ee056b33fa. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPKI00916853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8a141fc53c461f58abc04bac4a6a78d0ebc9692f7e90929cc5a0ef05a6b174. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPKI00916858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fab18b582602f19189165b911792d826e74a261370cf8b0898054a2f95c24a. 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/JPKI00916860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab27a577ea809e0f9238d9da447c8631632bcc50bfc916644bfc9ded2fa193f. 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/JPKI00916863.