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 0xe2dc0f4c1cb7acaaa55ef42918c52cddaf5e23c21ab6c5967d4ea74dd1ba89d7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/366faa00-42da-4027-aa30-dc49bc57d963.json and https://artists.proofprofile.net/proofs/artist/366faa00-42da-4027-aa30-dc49bc57d963.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ『シュタインズ・ゲート ゼロ』オリジナル・サウンドトラック
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 0x7407f4d6390f262dda3c2535423446e432d4224a2c449ff7dd4238f451df09bb. 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/JPK631802501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9dd3682ad78c277390910dad5685c9aceb4299cc62a59e9e8b1b61ef67d590. 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/JPK631805221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50ed878164e18b4ed2c44c9a16c7e35de9dcf5f67cfb07165236f372383b974. 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/JPK631505201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d68d870b7618d0e05f81a03fc9a7df99d8ebe790be4c30561ba1dfb5466dff4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPK631805222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f5937bb8a999ceb78472fffd0ec009df74187bb1301291af591eb3e1619397. 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/JPK631805201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0748b87e340e282be8f69860fd7a0ca090e29706864efdb0895ad6547bae3eb. 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/JPK631805223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184532d68e833e5cdf92325b15e8d32b0bc94f904e991dbf9bc4a640c8f69008. 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/JPK631805202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a041216cf6302bae1b4d955c2ec151b804770f687dde143f8b181d357c3e3e. 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/JPK631805224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad07a9179dcde6b75da729afd17e6c7e23956e037f3ec32192d7a3f44c2e702a. 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/JPK631805203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97eb3b329311046a05efc735d15b155c648117b7e21b77b6f653d067c0cc4fef. 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/JPK631805225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f7add8f5bae0a50874574054fdc74058565d7f0190c9663277883bd810c161. 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/JPK631805204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d96db42ef22182d659bb09c352da99c49ba37181f6098b0226011c23c569e09. 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/JPK631805226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd3d949a375f0e58d388fa01c7aadcf9423a69f312c5fdd5b4f47bf2088cf2e. 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/JPK631805205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a5e23b488ef574da1e350c7f3146e64eec4bb4344f4c7863e0e319ebbf3be9. 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/JPK631805227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ea7fabd7c83a51105b23be132f5bbd8536306923b4b533b383f2972138fd1f. 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/JPK631805206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c373a01a3a4cdc44eac21ef7b4df4730e6883ceb754a60abfecb2e718083cc. 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/JPK631805228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910f649924c719b98e002fe3cb752bc9fbaf639a89dd95946e98001934e04989. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPK631805207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662a24fa1565dbcf9c58353dc3c3b2c0d4ad3ef40137be3216ae2d7edac07e88. 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/JPK631805229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7672b5cfc9777796da2fab87ecafa5e4c6e9a02a087b57e1a25f22aaf29111f3. 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/JPK631805208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878215f2c1a63cdcf32b0617042986ef9830422334307d1f8d70659138e75331. 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/JPK631805230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccdb3a7aa17b759f29bb81bc50ff01cf883f28a9a5469a70fce6c9aceacbce1. 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/JPK631805209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acbab55a9a3bc0201f27d812d61a49229a0bcf9b5bf9a3cf4e4f391e8a93d2e. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/JPK631805231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83a14be21c5036a6000e930c706632d672f37d0412477c36ad9bb74d9a47fa6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPK631805210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233f28360d561f379457c7152d509d8b0f3f3ed58e672c324eea477854fa7c66. 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/JPK631805232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3ec2798db1f0815da9f13fc98b51d2f1e65f29e275202efa0a43fd33f5d58c. 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/JPK631805233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d42e33ca50c16001468f8e22559011d991a674afdc47c97e8a1602f3c780ea. 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/JPK631805213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9016920b6b630570596122b51d02991d18f30423aa5bd2c2afa6062cd5344f9c. 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/JPK631805235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6702fb8c19ee2a8608edd00af83f5b3452021ad9b0604523d54f0e80c2e3bc. 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/JPK631805214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abc2842ed36f1a6f891fc599411bcf25b9aaaf140453fb6b390972b301abe69. 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/JPK631805236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2b93a1ed4dda69cda0ef5a4d673edd4a2975dedcf2d7fe8ca8df406aaeae69. 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/JPK631805215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aff9d1a0aaaf923890fc25f37076e72051700ea974fb12968460c074fa73039. 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/JPK631805237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca00deaaeefba8c19f94b6d86109f244e643924cfdb273079ebc8afd7761a9d. 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/JPK631805216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81028598b6d269fb77280e777ad9cf476fe7420fe88acecc15a3cc4278fe1477. 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/JPK631805238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9091f143365154511453335bf64186bca7f646dc2196ead01e635db0c6adea. 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/JPK631805217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f04d9b11e23ffc9a6b798bc789e89508068d5f157bc822418a2176b87c49ff0. 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/JPK631805239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165efb01cf7326da5a0d9db11906fe10ac0751b6596578ee0105170a4c80ec1f. 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/JPK631805218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0528843e4f6bc4c4158ebd90bcf5f756536fcb088fe38ea1d85ea2cc23cf8fb8. 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/JPK631805219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09969c908a3172da7fcdc9a10f54f2ad01fb337794cabcedacd8061c1f92e65. 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/JPK631805241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd311c8f48a5e287f25393412abe029563f757b42ff7d20f966f7edb8e517108c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPK631805220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd06f3cce207920689686e13afd470d1cdd7e1f682fbbaca63887af77cbabf1. 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/JPK631505301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24eecf3936f50d07bd779c875052f35f07ba7317ac341cd83ef6df6e9fa9ab45. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPK631805243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94368db04ab2ab565d8e480c36aa8b1ae9acfc5edb6d468345e9c3d7c0a0c25. 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/JPK631802502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb57b7bf427a7e28ddce30408c07ac17ce9ae6cd81e8e83d716200ce3fde4db6. 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/JPK631805244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb2be25fc33e12cf47415905edd4f7a766f6dd5bcf0f48488818a5151a3bef4. 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/JPK631805245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bfced5695d1d0df3e7d7ebedf32b7c2985a0aaabbb31a1d27b1edede4f1848. 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/JPK631805246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f6a205c89ab13961259359eb7d517df00126264406be60fa6e0282bf5feb89. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:58:48Z), 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/JPK631805240.
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 0x42b2da15ed01d1eec2faccccc849ced23ddb512a2a73dfab73b6d58a506b228f. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/JPK631805212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006b23ddcd33250f079c26618a5053dbbc1a37914a345a899d6290bb0b293b9d. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/JPK631805242.