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 0x8f91ea112ef4fb870c840f3b7b7c5380c844491c418170ae60b64da7832ddb25. 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/dc66a1f9-69c6-4a6f-bdb1-c2441f9a67a5.json and https://artists.proofprofile.net/proofs/artist/dc66a1f9-69c6-4a6f-bdb1-c2441f9a67a5.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 0x2290cb3599920b79aae27d8d27fed24bd12697af620cc0d3c723549f1925d30a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:34:47Z), 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/TCJPJ1982959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db1f06ea323fcad8ff0345dee5409fd72c9f2dd1798836b4859882641393933. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:24:38Z), 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/TCJPJ1982961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3161faf411a866838b01d5c3fa659785e3877274e6a741afec04f92258b483d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:44:54Z), 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/TCJPJ1982964.
もういない人に言ってもしょうがないんですけどね
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6faffc1348d742792b0445b7c2f5a02bca2a1a8e2d434ab1aacf92f0eff315. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:57:44Z), 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/TCJPK2043491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124402ddd6a81275669f772a5028d03fffa42d4805793f820264f3a64dfeb2a0. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/TCJPK2043492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92bcaf6ef18c8be7b9125bdf65034b73cb07f7db65cdba112d05102b4379825. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPK2043493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5588d45083a1114ca5eee111f4be7302483d608032e86b24a2f2ea80f73c62. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCJPK2043495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afd2911bd1ad0465e2f424a325a4e9fc7d6af8144c83b378d0135293a9ba103. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:13:32Z), 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/TCJPK2043496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f468b1542c728f9e7959d890e4d5301e1b4c644894fc1d07ad784877410ade. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:27:04Z), 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/TCJPK2043498.
ノンフィクションなんてもうしまい
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7e82cb7c2d091aa81d9a482ee1d714e0bcd0e371b3cac8940b7a567c244e24. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPP2161399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377b7f226ee00d5fa2e4e8d5a4d705f581762cd8202b845400963f03312ace83. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:49:41Z), 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/TCJPP2161401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03e7aabe00dc82993ed515e83ed1723ac0731c0b26d59299422ee53b1008901. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:30:36Z), 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/TCJPP2161402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c94556514f6ecd98d103d68ff1103e9e6a52ae2b84096912717405f2569899. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCJPP2161405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05b2e577ae2e908e1c5af2983d8ddd82e987af44302f08588581a0fa40302a4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:55:10Z), 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/TCJPP2161406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4a50b0416534bd04adcaa5d90dadde2421379e7d85fb374e3368b25c393441. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCJPP2161414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1f72c159d2f35fec0208b99a1b504cafc403849fde71076c3b6d22af71c611. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPP2161420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90053792106bbaabe72939abf90e98281b653540b7ce1a2553f66a8d2f75721. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/TCJPP2161423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a55ba2bd688813dc436caaf1408cabbe9f2677428b30995b4e14e29345bb39. 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/TCJPP2161428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ba1f1313868a203e8a9abbafd0258721c5b5a9444e010e009d4e577fff7509. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPQ2159987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a29cab799db3471866b4e745ad6a032e741a1738746456d7887214221acbee2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCJPX2378026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f299122f2e94f5dd3eb18a142b5e491868a09c8d6b3c110deeef64de91f569f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCJPX2378029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f14d340f32ffa2825aa0ad607669a811603306bc3ac0884677876094d0b70e3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCJPX2378031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bae08b7ae75cba5c8e3240f06eb73f6b7881ee6c1dacae88dfeb70564fb8c2. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/TCJPX2378035.
ヘイガイズウィーハブギフトフォーユー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72865f8e38189ad08502e5b3df32d8bab62b9428e530354c7c849e5f482c210e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPX2378036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5f6a8bf40f41e362ca93055ab4311353d7ed5cbacd3bb6b820262ad2093530. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:14:48Z), 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/TCJPX2378037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bd19704377d1c07c8aa4e37fecd6e07a319c1590bb217e2d7b62523f3da875. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPB2489298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bfb42b6cadbcd866b11c45b4935cac08c99023c97f37c16c75c3b84e8964c9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPB2489305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd6622f4759c8b1adfe149d39aa82667b45dcd7d36dcf7c92e5dcf522581fa9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPB2489307.
せんせーにいのられたいかみさまはみーんな１６さいだよっ？
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d2cbe4de64ab9483e2032d26020e6d5fe2657ddf41cff2997ff245bc424da2. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:21:11Z), 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/TCJPB2489311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bd848339430c8443cafa25d5a853172aac2c4a7ac78baf639fc60d3b66772b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPB2489312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf213609ce2eb53b63fcce40c13f50d70b5ef8025f50584fbd8d8b687f8fbb3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPB2489314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31299878e4dc0183af8244bbc6b296fa80c729c39c2efa13fb60b895913cdaf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPB2489317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bc74d753f35bc07b4e2f7f0f19d945282161390a6ef03c3229f3464a003d74. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPB2489321.