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 0xa098be42d846d7cad41a139c27294eaa2bd16006959114c6b97a724c78f9e9e0. 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/733aeee2-d902-4248-917b-49fed82dbeae.json and https://artists.proofprofile.net/proofs/artist/733aeee2-d902-4248-917b-49fed82dbeae.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 0xc524e644f0637783ead22477ad149053c83b9e469bd0ccdf9bea91a0809b6e30. 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/JPW562107923.
Paranoia（SBver2 Remix）(feat. 森羅万象 / あやぽんず＊&あよ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9406cb64585ef97b30fef36fc695ef5e6b60e14748d53f6494c793577bf07ea7. 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/JPW561907109.
叫べ ディザイア(cheluce feat.あやぽんず*&あよ&謎の人物K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5cb491df80d3ba8ffe9ec48846a673b794642e8dd375159c1c7dde831eb725. 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/JPW562002028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ba7b0714ba29276a2912466c48e8bd633cb872b283b2a4cd8c6d459a4e0eeb. 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/JPW562111928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c67adcdc0145fe1c13d7e2f9f4cd3cda3b62368a53d6ab983ea139b74744c4. 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/JPW562111932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8258c2e2f93ebdeb645163af2749d6999d02e2cc77c8c73e884cf843ad6b9817. 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/JPW561809332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2ef4efbc3558df34249b0d09b7891c889f79274e0bd60a8ee5ec5f1b8dd288. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPW561809269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789142dd2ba41e776bd225d94946a287be2036c2977540caef4ee56898973e3e. 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/JPW561809294.
インモータル フィロソフィー feat.あやぽんず＊&あよ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919ba6f625bbab1b75bf507269aeb7adecfe29c019d4d0a5f3a9309d3dd830f8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPW562107926.
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
きらり メモリーズ♪(cheluce feat.あやぽんず*&あよ&めらみぽっぷ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321e08d45c1597851f0c9be1c8f29f356afbfc198acd2a16660f084a3b6b2cff. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/JPW562002040.
きらり メモリーズ♪(cheluce feat.あやぽんず＊&あよ&めらみぽっぷ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d353cccc1f0f782aae84a8bb5b35fe763f47b54be2db7661f4d4bc30eb8c38. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPW562108118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2eb81dd4a1ba2c1af9498b8f4d1801d3727116dbd49d53bf722067cc105605. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/JPW561902985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1e367a5edf4092cca7fa4eb99c48aa0795f4bfcb6f17200a626cc39dc01b30. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/JPW561907068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f94b347102967a2004ea5463987c71265109b02d9c47f6046c86df6d3644de. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/JPW561809259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08406f7dbf1252413355631ad419fd6cc0a01949cb39373a002aa5388fae9fd. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/JPW561809315.