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 0xe0854ec3453e88c8975881eec7022bf9305c97b2ccb72ae1997068c0e58dd193. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ea86338-c74b-49d3-b3c3-3e1c1e20bf41.json and https://artists.proofprofile.net/proofs/artist/6ea86338-c74b-49d3-b3c3-3e1c1e20bf41.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 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 0xd3ba3e52ac9dacdd40e6d80dfb40b080024ef60d38bebf775f9c30f4ec09da55. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPB750316305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f10cec2b899b39c7f7a0d54316cde0f062be04e4511429f04df71e805ce933f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPB750316323.
ALWAYS HERE! ALWAYS DRUNK! ALWAYS ROCK YOU!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd982409f1f62948b728618eb82de72ef0487b76492f541f0d3254301f45e4497. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPB752424701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46501eba4c1f154071062575fa3321e3647b677198ce9077bc0342aafc431c1. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPB752424702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5742719936e10d90209be7ebfb63d8427d1a838064fee7415b03525c0aac28. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPB752424703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf80da7f30e76dd94e3a2a4be630e87e24a2ae5cb2f4807fc216969820f59786. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPB752424704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc219a96beb8d3ef6d127ea097db125d0f4d42a4682340a7fbd33fdd91fbb02ab. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/JPB752424705.
新デキシード・ザ・エモンズのテーマ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99d211c4179ba77a08d97112eaa75058279409d71bd53c820df0750ce52c175. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPB752424710.
デキシード・ザ・エモンズのテーマ#1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e7118019fed2068acdf55b4b1ae7e4a2eb1872af64cc78293abdf716035d51. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/JPB750002201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6169d0ecacb607a8e01f0d0c2e51b8180d280ebafa4b54b514a70ec521440b86. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JPB750002202.
ドンチュー・ジャスト・ノウ・イット
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cfe8ecf53eb69d70aa5bac48209ca353a808613545d0e74a13044b2f2f4f40. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/JPB750002203.
デキシード・ザ・エモンズのテーマ3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bd664b12993a30edaf1e6c2fe56ab97ae1d47a837074d486b1632a1ff63a8b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/JPB750002215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5317d5c2232cc2ff3609d357353898ed3a175492175a421495144d2692353bfb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPES09901462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73daa1c0019282cc0516f85f2b362db715a35c82f28024379e015a30fade0531. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPES09901472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836a4c41ac3211f5a2d7ebd783fff4fbf5d2aaf4837fcb655a5c127d93310ad7. 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/JPES09901474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55095fc3bdcad52c7c559a82c6f6167c0579c8baa79ebd24d96dbe79b6726e72. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPES09800993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf05c7b7aeea053de70692ef8269543d343e9cd3b54bbbf6c113bc1f6d67836c. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/JPES09700292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d6fb7a34c10fef0be3fae79caebe809e1ef404e68f33720ff216807b6c9669. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/JPES09700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc901669016ae55c39352a2861f1ccfe06296f0676a10c991a90821a6f9118e. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/JPES09700301.