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 0xde6524651c738155291e3b4910a61445aa6684926a61670a2252c05dd9d5a4b0. 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/e179a9f9-76f9-43c8-8c89-66a376afb3a8.json and https://artists.proofprofile.net/proofs/artist/e179a9f9-76f9-43c8-8c89-66a376afb3a8.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 0x4feb186b8bbb13fe237e54f6176d299fc683cae4326a9195e63adbeff86d49eb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USHM21433093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5becbc68270564c98ea9db0b2689dc3940f319a891f9f2e580016a1e94f46ad6. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:02:51Z), 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/USHM21433100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6e7ac89053175133a72f0baec4229726b184820161cf1625498ab2b4685eb9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21433102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6ff57e6962feb52aa2f0439c91e10108fe172e35c96e59d7ae76ff073a2773. 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/USHM21433111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25025f8f70c972704116cd47817de8d7bd75624c6c41272d54a1f1f00f55526. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/USHM21466273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e511870f56a8ef74f4f142d2c091dc9a24d940bdb31ab13d63cdd7a72ded6bd. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/USHM21466275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa7caf96acb922ac644004e664c07c42ccb43ac0783a3c73e32a958f918d9f8. 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/USHM21466286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d18342c3e67aae58bab121d9ce562f12bb5d7a5cbda0d531bf6966be5f09aac. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:07:11Z), 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/USCGH1546432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1d141a1578b03db43f07d43d3459056c30be3e486a17fbd8016a6ad97695fd. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USCGH1593398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7b9b7bcbfa09734124b1167e29a257c382e3a3a0934f29ff63069b35cb0d71. 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/USCGH1593403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6d759405d08a0092b63d7f0e3be98258ca942f7704d67643b0c8cb73209187. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:24:21Z), 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/USCGH1593406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb24c5bcdf855d4fb605fc76f61ed13283b64fc7315c24f8f095fa3072d95d5. 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/USCGH1593408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83313c07a8e04984ceee1c4cffcad5449f5159564c3beea1a939c11b44e17eb0. 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/USCGH1593410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10c22056a50addc93e2082281b5c508b75c9b22712c04d0ea6ae11305ed7cc6. 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/USHM91670742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d816630daf5238827e473134eba7bdefec8d4e495ea4a4a5cbe073da1b41667. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:50:26Z), 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/USHM91678636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0915f1d1d7d16ecb85165904ac9547083b01dd0e312c09387a437f8a417e4364. 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/USCGJ1705932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdd76d5adc6e186c958a7d06e969701f2660c519c30bcd682f5a4c5449de5d4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USDY41701922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9233ce2219440593d0b793bd62732d35b43f3700973a5f4ad5278dbb4199b9. 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/USDY41701900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5583fa5f8af03996486386f2e11b0f9c92e6698fbfed83a3615a9ab2d8851713. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:48:46Z), 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/USDY41701902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8afb17b09deeb73477b37a38b76a9e38d9d7029c832e4d716f8dcb00f63e14. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:26:40Z), 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/USDY41701962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd4ea000b0ea4cf519892ff09ca0cace6e8dd4f2c456ecdbccf5ffb413805d5. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:45:12Z), 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/USDY41701966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059cb660c58250a08e90cd7f12f9f9922d6f03be1201b5687822621e4d4f596c. 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/USDY41701967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe67287876c9d307754f884014026bbb06a1e7066266465e2027e6c30a8aeefe. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:41:18Z), 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/USDY41702016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8964bb493394dc8f0e1a18fec66b78c058c475c2ad791b4be00dbb318a7f1cd2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USDY41702035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eacdb55ad88af3c396f1780759efb3a1b839c469635b483b2d5f090be1cc752. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:40:50Z), 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/USDY41751731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81d3195eab9015110fad1d6238d4445c10abea7be917cf3b54093e911aeed5e. 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/USDY41751732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedad7986efbc6b77e258356149af41eea9f43d38b92b550b4c38f18cf06db974. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/USDY41751737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49486e6cb68446d9ba2914bae753dbc96336e9bcf46a6af4921f8151ad2dcda. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USDY41751740.
Otro Cabron Como Yo "Un Campeon Como Yo"