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 0x4838207f784d02884f1a3e414970995c47303fd2a8e02637e16894dc6407a6de. 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/441fb1ba-c83d-4bce-9ae2-5900e76393fc.json and https://artists.proofprofile.net/proofs/artist/441fb1ba-c83d-4bce-9ae2-5900e76393fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Woman meets Guitar B side アコースティックギターで聴くPOPS名曲集
泣きうたカフェ ハートフル アコースティックギター
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 0xbc65d3ea888930ad31e2c1f1ca700131275ce9d520c2611f21bfd1734f38b77d. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:05:33Z), 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/JPR291800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d5cd173f4242113794f8cc8b754203c973d2704fee134945882a3c6719f483. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPR291800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7498e131f1a3efa1bad4995e5561bbd62e8356775c95e90985546de5abbafbfb. 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/JPR291800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a851373ba6b57252ef7ee7f38b7b18a816ae5fc069e5a09503eedf2a6116ae. 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/JPR291800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f503d0347ff35b5547e06f899a25f006a468044ee612ff204bba40a743744a. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:16:38Z), 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/JPR291800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda711fec15748641a5a07015114278874e6c2f4575a98812593d11f474863e09. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/JPR291800090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237a5e4ed5a59341e6f6cf43b8ee73abf53ffe3947812040d714b591640497fb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPR291800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcff81e3863dde0b273b5d480701ec67506db215a16f8217a4f6d86a980646e. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:04:41Z), 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/JPR291800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542290c7c0666fb643465d779b2c56460306f7d99a14dbbe542fa12d196607f7. 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/JPR291800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41e61be40461a1541d053ae78d7b5a3c45e58ef4470389effbe1974a06ae75d. 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/JPR291800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c3af2f5ccdb4c625550b03206d5669f791a21b31702a4e6d02395fc60bb96c. 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/JPR291800096.
休日のアコースティックカフェ 出かけたくなる洋楽カバーベスト
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3d767c51897d390323ca1f498013e92137bd5cf8789349749ac88f24d832f1. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPR291800567.
韓流ドラマチックギター Best of Best ～アコースティックギターが奏でるドラマテーマ曲 (Instrumental)
Acoustic J-POP Selection New Generation (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f57fc1d0f5d27a66c7361aab0da563be2a5fb62f404c62e0eb43b91e87d38b2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPR292200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cb32b175209f45709752ae43de3994277336023fca685f145cca5c3221c605. 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/JPR292200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0423460cf12085db14a56e202707def9845c65ef8e458cac115e673654807a00. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/JPR292200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7abf7af1ecc863653cfbba1906fa34e11a09aa4eb2df27817183562abdab0e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPR292200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22eb38eef6fb920142000845f072f8a5bea8a515aa35dc71012e87abd5419098. 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/JPR292200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4036e93bfbef594e64a1390a70fabff8d03bc311915fda66a5eb016f030ef5f6. 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/JPR292200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ba2938196d42e184f7d01efc3bf380f1795c8d8f6b4c551db4729461766250. 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/JPR292200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88ed32faf74b782d1d91bac8d17f7541665e825b4fa249ed09a4647866435e9. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/JPR292200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bada535f9d4d1236397d0722042d9377f427ae8f42c80fd309beb35fb1d7b5f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPR292200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2590d752c955a8ae2642e643b0edd4aef778e0be066db897d42da296ee5c961. 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/JPR292200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d8add0b0b43895f4f12316e3605ff0d1884e342dfa3bd468b4c6f732004c2a. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/JPR292200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf808c70b69ff0d4528be30bddfc6e4d386a64f9df563f9b09ea355ca0c9aaf. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/JPR292200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39d34041ea86ebb55b31765a41591da520b0a58d50869dca56e69637cc689e9. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPR292200048.