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 0x723c6b08229bc1b5e57492c7846a1fb2b5f0efbe674daf583187c052afa170bd. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de3bab70-bc6e-41d1-a18e-3e5324d766bf.json and https://artists.proofprofile.net/proofs/artist/de3bab70-bc6e-41d1-a18e-3e5324d766bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
CHRISTMAS mini ALBUM 〜1981ー2018に作ったクリスマスソング全部入り〜
Burn - Live#008 Ver. Originally Perfomed by Deep Purple
Guitar☆Man LIVE BEST SELECTION #001-#008
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 0xc60b9373d51c859082ade165b67ad5e6aa4406e54df3109c1e1b939369b6127b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPB951317738.
ファイアボール - Live#007 Ver. Originally Perfomed by Deep Purple
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ba1882568d694594786899635153acd474552ac9fee89073b309b7491f5f9e. 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/JPB951316407.
ジャンピン・ジャック・フラッシュ - Live#007 Ver. Originally Perfomed by Aretha Franklin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5795453f1f7fc567b096253845034fef1098f7f7d822da4d764d60719b6d8090. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPB951316754.
Crossroads - Live#007 Ver. Originally Perfomed by Cream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd310a23d4b6818f33b6e421d397d42e69ecbc7ff61ec828eb2cb380f84e3d45c. 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/JPB951316413.
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
Hotel California - Live#001 Ver. Originally Perfomed by Eagles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bba79abd65ce4512226e0640fe0b05dca128b04749279cf75bebd89d67fbe9. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPB951313917.
Layla - Live#001 Ver. Originally Perfomed by Eric Clapton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f58c8c649374438b89c6158461c51f0feeb8acf287f1ee07421378507962824. 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/JPB951313915.