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 0x13dc0f33b3f1400b4927b342cda0f0dc0d0f06692bf1836850d839685f798d1e. 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/d1331f17-e1fe-4a85-970e-872ef80bb57d.json and https://artists.proofprofile.net/proofs/artist/d1331f17-e1fe-4a85-970e-872ef80bb57d.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 0xffbc48ffb2174617e1c252b3c48f876b8412e46426cdfae317034995dcb85f61. 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/JPWP01901255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba37681646596c604d807d1deb642e0a5a4cfcd21e559c384036bb71ef2a4e7. 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/JPWP01901233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d152bd43c7890f94e7815ebb7fb484c96028d8b27804f086cc2716ea34304e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP01901307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644b5182c64f24e72241e3427bc388c45b6aa931955feec39b70d3a36ec152e7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP01901308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02547a57e4335f0d679d06187ebf1d6b4caa89c49f1e520ed108de36bc9e924d. 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/JPWP01901309.
ビジネスはパーフェクト (feat. スチャダラパー)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab17991d6e86a6ff4c42cf3a36e52c7a5d73bcb3e8d5e4be4d9c32f67304c2. 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/JPWP01901310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c087796d1eaa6f8f116d6d83c6c4d6e376d752a58f7d36ce0eef96a89b7109. 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/JPWP01901311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7504d0c29e96d9e801546cd6b964e3dae1f4f119a482bd820713cc50ff07cd. 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/JPWP01901312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0aeae8564d975cf6b14b1b1119d47f249a44ae10b134b8d5eb86e1e48d65d2. 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/JPWP01901313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc541c6d7d35bd144b0a1cc1f7365837258026224cfc6313fab1d1de842c7cc2c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP01901092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622bc3abc659fee77be64cb0b18a6217cb380f4d05123cddf5a83876b2cf2cd2. 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/JPWP01901315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dc14d5bee22f84346879c3284d25189cd80898978cdb4d1f1532d177c46b3a. 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/JPWP01901316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cd7611d039625b97e8a69046e48645e2ffde63d579ace6872a5f4cfc40aed7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe0e16add9b1e99626f54811ecbc71a59390401b5c1452efdceb9b77d15fd3a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02270347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd293bb94529263c125b8247c69dccc13c3ed86be3aa880cb01672c63f0ad8a. 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/JPWP02270348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0099f84b6dd383c5cc17feac15de610be36915aa3d306a1b72c0671c9c4b1dae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02270349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234882bb77ae64baf2b571bda624184e3ad6927920bebaf48fb82de59a4f0c94. 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/JPWP02270350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2f0f2b471aefb72e390725d03351d6fa0ac02cf122a41f8d25ac57aa50388a. 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/JPWP02270351.
シンゴペーション (feat. Gentle Forest Jazz Band)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce20e247cb08edaf4579db9fc980d6e77ffa7a03098b6a4e79905789d785ecf7. 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/JPWP02270352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96302c5e954397654c6cbe3e3757600c80333e6601349350920edaae00a467f2. 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/JPWP02270353.