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 0x8d1b2548c3159a94e5869963cb1911ba4e186ff44f81e78f85361af1639e56f0. 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/f36868cd-285e-4c66-9d07-b9d4ef127130.json and https://artists.proofprofile.net/proofs/artist/f36868cd-285e-4c66-9d07-b9d4ef127130.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 0x5e1f4b12519841d5e6a30df16dcac1b39b28e453fae4c40b791bf21e1c75a068. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USRL19600266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fbc331be8b08c35e73cd5a1f881afa96ca0619bb3bba738aeb190c91b0b6b3. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/USRL19600267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3febd0193afee41483f1658779a857a11884ec716feebc5b388a039a0a14e05d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:11:13Z), 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/USRL19600268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe129f886124dcb67764e3f48915dde72da1c9b7c5cf4bad4a23de851012a7f2b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USRL19600271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6d532f045a9a58242165d7e60be279ca82b77ca1918f50e4a864a636e72c0a. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:30:53Z), 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/USRL19600273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21f478b4e20f520652fc0ff43b2f83417133f7c35fcdbcc5a8bef53a3854c35. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:03:32Z), 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/USRL19900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa967f1994a625c4eaee12fe7025039e1b7eecc9958f319a1e662b951ff7000d9. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USRL19900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9803b73f2e32f370c167705bc7ad39f7f4eb24070c8a5c8210be31cd4447c572. 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/USRL19900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20af787bc7d0902a5081260554d5832aaafaf09c7ebf4b9c73c05db4653c6d51. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USRL19900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54d6600afe153d0c0fbd58d0dd4967cd04b06acd62a835b7157903850a7f38e. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:45:24Z), 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/USRL19900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf136064ebf8ff11a03c619593f2a9c3954b8c30ec60733759f445df59675b81. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/USRL19900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e96030cb12a1a385908b6e49884730a6af2f6d14c805804d01d1414800a27b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USRL19900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cac6b6bb90f3d92cbb8596859e6cf658c9f1707648b93b01c1d972966ed22a4. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USRL19900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6ec68ea01ce860a965dd5bfefdba67873b35bdcc8ff9429c6eb8fe5c70c1b4. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:24:11Z), 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/USDJ20110161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dfd038251a07dc0f0944bcc3e2f2ad56c268101aa9fe8353f9f56ae5f9b1e8. 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/USDJ20110153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87e2bd541135b760d9f3aa60ffe07b34358dcf4c8647d903a4b0645c2ac2cef. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USDJ20110156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72648b770040a992687ccb0ea6f151e7b51fa48214cf666c8c498cd8a9cf84b. 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/USDJ20110157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cd3ea002ccae8804baee4654f759d8583e5b3182e49aea4a5801fa10c26b1c. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/USDJ20110163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea91cbff7d7016925ed33d1f63cd8b4b25298962107b0f77c6ad44810df755e. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:45:13Z), 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/USDJ20110169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb377e2dcfa2f4699de2eecfc6f8ed6e3b9ce3ae5db2e26a16e90ac32c326959. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USDJ20110159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b8f835f1c091b670579edf96a38605397defb2a26774ab7e0589b41e9339f0. 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/USDJ20110162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be1c651311725e410346ca91f14ee328f25b2e293f291800d0bd24359716a64. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/USJX21270102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650303c007545650ebf82d20287821d563c65c5e65d472aa3bfcbcfe72a4785b. 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/USQY50906731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760b39bd8b5f59a7f2b4313e95c4db7f84b8d567ef389c77b0cbd6435bc3b7b9. 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/USQY50906732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a49be266315c24af9fc729b1367eae659d3f95a1a9687fa0a6f7e549a63801. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:05:52Z), 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/USQY50906737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1151eaffa2c75e033a1510a2d85942634610e2ca97b80fe8a00a54c88b74f836. 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/USQY50906739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38917228b18b50f0a023377a2990f68aa6c3cfbf7f310575580ad0260bfffa12. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCRP1076397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced829aae232b1b4875cbecd650860e8a6b8d6230a888dc1ef4cdf9b0b1e322b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCRP1076400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9af27a0d8e54cd25e7eaf53520d4815b2924620ebcb3799d98e535d461eaaff. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:39:52Z), 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/USCRP1076402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84085b1f89dad792abe750bd009dd6069a91b7ea774dc7ed6fd3453e342e2b3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDJ20110131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fe6fa487012ede6711e0da3abc1fade48d6100d25ddd9127bf6ee49e956a58. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDJ20110768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474cf87ed7f2197d89c7d5d783647e771730fe25133be136967e23e72d1990c0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USKO11402158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2791a87739e9c11da3622382adaeef9164ee72504207bb10780f3f7d919be9bd. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USKO11500139.
Case: Relocked, Reloaded, Revisited (Re-Recordings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69542fddfd62815eec70a2974541503afb0e07850cc388ede0497cb9aadfc377. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM6XS1807493.
Touch Me, Tease Me (Re-Recorded) [Sped Up] - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0d9a4153b292a5ecbe75c8fb27b196334f4b4236e8059b8133f42a95893599. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:40:02Z), 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/QZAKB2422768.
The Ultimate Workout Collection: Blood Sweat And Tears
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fe6fa487012ede6711e0da3abc1fade48d6100d25ddd9127bf6ee49e956a58. 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/USDJ20110768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e3a64abef4eeafdd41f1c122c37a1a14e312fbdbb7508c3fe569554c037b56. 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/USDJ20400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30e53d2612d28d1790e794564c57a675a9eccb72eb320712441972173a80d5d. 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/USDJ20110579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a6974b4a9edd58b7e25fc0a8f5ad19b5fb9537a85a01cd120ead768064ce97. 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/USDJ20010065.
Missing You (Remix) (feat. Case & Eric Bellinger)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2c921c4ecdf53f002dd715f0acf938525cff1e96b58494bb19927ddd11d621. 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/USLD91727603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c2f82ff2e76950f9cae020da2746048939f15917617c7f700cac9d971a50eb. 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/USLD91728102.
Faded Pictures - From The Rush Hour Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ea9e70c17d0b747d9e4edbc843dc20c4864aa3c750a0a481d5fc2c46bf86cb. 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/USRL19900026.
Def Jam 25: Vol. 4 - It Takes Two Pt. 2 (Explicit Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ea9e70c17d0b747d9e4edbc843dc20c4864aa3c750a0a481d5fc2c46bf86cb. 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/USRL19900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fcfd4b3b81d85787e1a6354c57f66a925b6e0ee72c4a2e3b92f26f94aa35aa. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USUYG1252748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb873949ee912c524707f057cc77bde9cfec080217bc524776e205fdeceb0c392. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USRL19900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ceff5d2b8f51b87ca110c9d130401daa31db6e3fe7a9ad3c6ea1c66e4f390b. 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/FRPI32400121.
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