thumb|JOAK microphone and Iva Toguri D'Aquino (dubbed "Tokyo Rose" by some), National Museum of American History Tokyo Rose (alternative spelling Tokio Rose) was a name given by Allied troops in the
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 0xc18643696d4c93e004495e3afee4777e9c0454fd633bb05e29e47dadfa6e867b. 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/ea34296c-aae3-4e10-9b21-ebd9a2085f2e.json and https://artists.proofprofile.net/proofs/artist/ea34296c-aae3-4e10-9b21-ebd9a2085f2e.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 0x60cb1769fdcab1e1d0e07e98ad7a8fa416f08ade5fa298d60f931abf5c439d9c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFYX2034670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6ca38080a301915d3faca71d0c778a02d99cd2b85aca335c4a2d2ebee8be11. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZFYX2034673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f5c0503509f9d4cf4ef975f32e5dd9e08f21e05c7983028a84b4b3b2d190ea. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:47:15Z), 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/QZFYX2034674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5981fd3b90869d3e4a2aee3b277e4ea2430d86ce6564ae4a692d46e3ec06a97c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZFYX2034677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439023155a5592e1d06482e33affbd64569ea57105d4309f4ae0f22272464e32. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZFYX2034678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cc0de18949aa6cb3ee8ae32e396c015ef8df120e15678c48c27acedefe664c. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:41:35Z), 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/QZFYX2034680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36895ed94558161670113e749e959f6041f8c5074d7bb8e90a49d82fd161f7f1. 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/QZFYX2034681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58315be09e206720ea14a4441b088b5093cb425c6a52b931bbc7c939910a9c1. 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/QZFYX2034683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6768aa88228dbbdfb314ac60e3d7df47d464cedab8b6f9c172aa5b3cf5b03ac. 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/QZK6G2221132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa241685e51b080bc66bb31790c36a9a540321d54f15ef2ee51f87e39979ea699. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZFYZ2400842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7922f16cd4cf4970c75fc7ff041b5bf8c74cdce9aba0c22df5afc18ba0e4a006. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTB82403763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf0b1eeb9a06ae1f0a919bd8209d7aeed4b0503391b69a740f13bbd1474a39a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZWFV2436837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1b00206ca616e7aabb6d457b3c19a84670272078c6f806c15fd2f0bca287c9. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:37:31Z), 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/QZFZ32598820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829364e21b013aa8d164e41c0a70d3644ef4ce51ba919ccdd9c31b1937f7e301. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:41:26Z), 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/QZES52543050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1b00206ca616e7aabb6d457b3c19a84670272078c6f806c15fd2f0bca287c9. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:27:51Z), 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/QZFZ32598820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae811ab0afd599a2bc7da9bc367bf4a3750b16e3ed86bcf3e2b8ee8280adfe0a. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZES52543051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89af28ad131813e69f2cc5043fd2d0dae3914d4b8b0ed05bd5498de0faa0fe33. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:41:00Z), 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/QZES52543052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf0b1eeb9a06ae1f0a919bd8209d7aeed4b0503391b69a740f13bbd1474a39a. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:49:29Z), 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/QZWFV2436837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791e2d6862b6a2b90a957bd33518002056aefb03b9e41581a107e49604eddd15. 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/CA6D22000219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791e2d6862b6a2b90a957bd33518002056aefb03b9e41581a107e49604eddd15. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/CA6D22000219.
In Search of Darkness (Original Documentary Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa213a032b2b6ebc7daca191d11db6590bd9e8518dfe5f2e6e5d02d45c5799e78. 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/TCAEK1926305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d001cf33e6ac12fe8f093a5fd1b0f6af72fe084577076ae76496548c7abfe8f. 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/QZFZ32467258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750160938ffa386f7b32785761be167590ced5004cbe588de2386478065c0c7a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CACWV2284402.
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
Dreams - TOKYO ROSE & The Forgotten Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95a1a6d47f1a16cd4621c19173306d283c84c329d1d1a59dc158a641b38c889. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USA2P2131403.