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 0x12e07b6ef4149653b44af2c538e9a7360a4af15478794b78fdee4e3f79427b3c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5016d67c-5363-477f-89b4-a3487fadbcb8.json and https://artists.proofprofile.net/proofs/artist/5016d67c-5363-477f-89b4-a3487fadbcb8.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 0x8063048403876a50d30cdf89642907518c7ea48858a81343ce2c51b5e7e31e59. 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/USA2P2320589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a71ce21358faf91bec9da46ee16c815b4ec1cc5f50db98d5d73863aa3c0ee3f. 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/USA2P2249134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa4aa396ffc68d9d4f39a738d0ee60db71ed4afd77e815dfd77bd72b78646d5. 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/USA2P2320590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84f6a29dccb669d02f61cbceeb75bd53c27ee142621478c378b620f4f86b0fd. 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/USA2P2249130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9623016c74de49fcd49fe8655831df010e5749274629e1d47017a7b4546750e1. 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/USA2P2320591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0f9dc0811476accee96c0c6a78b000d99da6e283d343cf30ce829575856d9c. 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/USA2P2249125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08df29357d4c9ee0d17e4b45d889ae7a882e44d41ae54b57fc6c6f6290519bc9. 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/USA2P2320592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefad44387770870a234df62988bae25f25568132266c9ebf2388e06c70334022. 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/USA2P2249128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa703c8ed27bfe9f47bbf3a7d9e2782c6078e745e9e580dc07750ac6a4da4f421. 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/USA2P2320587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83bd9f5877ea6b91ba26abdc2281fb845a4e905ae8369bfb16b8f91620e717d. 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/USA2P2249133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9405c66544733f7a5eed8ba2e9954d04ab7482d51af811b05dedc52b3353f2. 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/USA2P2320588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb1cae26298549c4c4318501eaad607c1b630165e9c6e568f20a3e03c6ebf8d. 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/USA2P2249140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d6744a3b4e4f69c1e94c7568beeb56df6846e2b67997d74aa94dd41848501e. 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/USA2P2320585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb291a24a3b9355c9ae9f188f72633ce8ad0d721493996f6e57f9cbe2dfe785fb. 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/USA2P2249126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c724574317751d1c4ae2a561af27b88e89d106029bb3e3580df0ccb51824cb9. 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/USA2P2320586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a18ab046801db0cdc08a9f693a5b9e79f848a44479bfb91659dd4cde1977ec. 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/USA2P2249132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12a0a5e40ac33dd1b4634691e6cbef0ff1d616d3d62ba775b01ba6c7600044c. 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/USA2P2320584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b87c6301553f63987804deac194b71110fe6beb4177bc698711e0747487ae75. 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/USA2P2249131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5888375a9ff720b5b4fa3d4c11e57686f8880c90b51f03294bfa43a50f5b216d. 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/USA2P2249127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72242e783ccacaf4b1d35c40edb4d5ac6cfba64d57b88b03d6368179e4d43d6. 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/USA2P2249136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf466e75655131cd06bec79da510824fdf39bacb5ec03913edf02a541e2d73645. 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/USA2P2249138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fb8f5b0ed61d85e5feb64e93b1c6b599c6a4b591d93feddb1509544a96e388. 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/USA2P2249135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf9edd3cdc7802b93308dc7a0eeb058ea6a2be79a77e84fd4c54935a083ad15. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USA2P2249137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544ae7a03f71fbb20fa493c5e4ed97870e62fd92a8f8edd6a3b44eb35ba6cd14. 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/USA2P2249141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1b78d96af5c55fdc78a67663cedeb658cbfd096bdcad6b4122a679f7714f52. 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/USA2P2249139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7da70437f263265fe49765e10a46d96d98a82e4c89039ea77c31b74c79a1f2d. 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/USA2P2249129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a71ce21358faf91bec9da46ee16c815b4ec1cc5f50db98d5d73863aa3c0ee3f. 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/USA2P2249134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84f6a29dccb669d02f61cbceeb75bd53c27ee142621478c378b620f4f86b0fd. 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/USA2P2249130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0f9dc0811476accee96c0c6a78b000d99da6e283d343cf30ce829575856d9c. 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/USA2P2249125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefad44387770870a234df62988bae25f25568132266c9ebf2388e06c70334022. 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/USA2P2249128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83bd9f5877ea6b91ba26abdc2281fb845a4e905ae8369bfb16b8f91620e717d. 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/USA2P2249133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb1cae26298549c4c4318501eaad607c1b630165e9c6e568f20a3e03c6ebf8d. 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/USA2P2249140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb291a24a3b9355c9ae9f188f72633ce8ad0d721493996f6e57f9cbe2dfe785fb. 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/USA2P2249126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a18ab046801db0cdc08a9f693a5b9e79f848a44479bfb91659dd4cde1977ec. 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/USA2P2249132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5888375a9ff720b5b4fa3d4c11e57686f8880c90b51f03294bfa43a50f5b216d. 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/USA2P2249127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf466e75655131cd06bec79da510824fdf39bacb5ec03913edf02a541e2d73645. 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/USA2P2249138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72242e783ccacaf4b1d35c40edb4d5ac6cfba64d57b88b03d6368179e4d43d6. 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/USA2P2249136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fb8f5b0ed61d85e5feb64e93b1c6b599c6a4b591d93feddb1509544a96e388. 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/USA2P2249135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf9edd3cdc7802b93308dc7a0eeb058ea6a2be79a77e84fd4c54935a083ad15. 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/USA2P2249137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544ae7a03f71fbb20fa493c5e4ed97870e62fd92a8f8edd6a3b44eb35ba6cd14. 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/USA2P2249141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1b78d96af5c55fdc78a67663cedeb658cbfd096bdcad6b4122a679f7714f52. 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/USA2P2249139.
I Can't Believe (They're Smoking Weed In Brooklyn)
L.O.F.I. (Living Off Frequencies Independently)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00aa900df0cd9ecddc5d36b625e090c29ffa66c739e403debfc93f40eea6a4f2. 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/QMFMF2375529.