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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc09a2161f04e1fee9f554d03b25dbe6fd6b208351f1697391fa11d19b461f7a. 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/e742e079-8467-41d2-a60d-9a71ae74c5ac.json and https://artists.proofprofile.net/proofs/artist/e742e079-8467-41d2-a60d-9a71ae74c5ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How Do You Fit a Cassette in a Discography?
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fc769d6fc5d31e3356fd0e9fc92b38397bb7259bd2aac409aef0a9f98a71be. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USHM81967623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f4d71841e23956bc8a749f5684c6f753a69ea8045641cdb14dc6b5049d9fe3. 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/USHM81967633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcb3d9414e8e1c4f9d1864cbb15fb79a1dca6e4c0588abead524d1dbe99d41b. 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/QZK6K2087556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a726a98d008202e2762ecb8e4be7dbbe513cfa041c34efdb86367d59295117. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USX9P2049005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a87e7082380a4fb893cc48736f653ee5b240d4f5c64cd084c5e196382fc0f0. 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/USX9P2049007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f6f2a06014dad7324873b4a43e1c5ca3529be7a685155de8bb3f3f1d7c9d11. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USX9P2049008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba8a161f0fdbad90a40830d42c1938379cc40d9911e76410ba6dfdc41755643. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:48:16Z), 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/USX9P2049011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e1d4f9e94691cb77ee49b16d3d71b4c8d2c50b976209cae43d5634a8c69dc7. 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/USX9P2049012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02601a102820ecef9a54ead2b66a5a8509b33c95a889e1f0bfe2b164bc44c3f0. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T08:13:46Z), 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/USX9P2049014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf519373c60e7f3c8e71a7e662eca41ed7fea45f13614f2609f7fd19e8f9ded2c. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZNWS2159293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d0ff26b01d534905ec14df0d1a0491ad7d0be50de2b89d2b2ab1053fd54b8c. 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/QZNWS2159297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5471ee6e87de05c419e026179514c48d7cd4ff8838880334b668534607cdee20. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNWS2159298.
Quirky Pop Punk Song (Existential Dread)
I'll Tell You When I Want to Laugh by Laughing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827a7e43870f5f0026324eebf3a19459a08f61be2c60d72c6477e31cf98a1e95. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:21:28Z), 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/USCGH2407104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cecbc4d36f96a2e1e8fb002195418f4ed1240bf47321346567e4afab6279090. 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/USCGH2407105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d251b8394eaad1bd3f08b215a401a72059669b190ceeb60244c2da91a28bbce. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:29:43Z), 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/USCGH2407108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77068c59fae4dee3a98117297604c6d24f18a1842a15a93a377330475c216d2. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USCGH2407109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d88e81e809f3dc00aa4c843f5ed9a595fd126c10dd67e0dd7ea7a9700abef2e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USCGH2407110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335d96bdbf3bd6af6bd3e327c009f93fc0801559231769e1df1ddd2df124d8d4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USCGH2407111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f74fd8fad88bd431dadf71dddc6f661c7b77c07c11d32b11b47a4502e5e9f34. 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/USCGH2407112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788865045d0aebe31fa72abb24557ff41754b2ee595dacce4dcc37a1a9fccd3a. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/USCGH2407113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3efad97a28f92654db7f62479effbb1dc3a5636e595e57b1df59c34847e521. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USCGH2407117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81408ef3c1a468ff3284b6e40dab86b5c8e8282baf83ae3f6ec493e74fb1c3ad. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:02:34Z), 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/USHM82487827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4437d5fff5a09cb595c96a6df61005671d907e493cb3efe8623cb1b1377d18c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USHM82487832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57443291ed5f061c9ef279a15dfd548b6b95288ebf3c088d262d2a1cd7b2a73. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USHM82487835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf433dc22a7aad080e0e444f3e217fe76f2c3ceded236ef642216d9f10d71b23b. 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/USHM82487836.
2 Dudes Used This Beat Before Us but We Dont Care
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08adf42822334e34d57a8731231143ce82643b9cfca821bd664d19149d48299. 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/USHM92537159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf84b9dc915de11c59fb608a06fa89a58b6bece2933d99e8203eabac691cb4d0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:43:45Z), 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/QZWFP2590280.
What I Need (feat. Super Famous Fun Time Guys)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d96e2850c57d4cc6042011bce1c192b490c989236405b2eecb0d60aa36701c. 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/USHM92246877.