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 0x12e4cc0462c143a510249db9ae030992b9a42e15517958dc4fd3fe1b6b328778. 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/62e9a5f8-e3f6-4a47-9aa1-6af890dfc981.json and https://artists.proofprofile.net/proofs/artist/62e9a5f8-e3f6-4a47-9aa1-6af890dfc981.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Christmas Classics with Big Tony & Friends
Old School Straight from the Vault (Live at the Ibex)
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 0x5dfbac4142d1ea6c8fae90287a17c79aceb62253262aa6ea0d00dd086024100d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:28:07Z), 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/USHM91858987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6fd1797822aa6e1b80c62265c4f34597f5ed0b207b07c6efd9f6385aa50971. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USUYG1248642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762e02a431d98ca986a0f070b357b9b891cfd9e37963aba2f80ddc3f2c0cc79b. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USUYG1248643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88795742500ce232686a50e5f216c4916edf31d5a0c671e4fabe6c12835944d. 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/USUYG1248644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549520f6b8c294d4b088602b762b3fe3d3340242a111824255171e009cf093e3. 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/USUYG1248648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8573ba95c378eed6d65f462707d3ddf56aea6afadab7302ae34c98d717292a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USUYG1248649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa59f154dd0b2c153910f027e7a807b4dcad3cb4d3fcc810e853bbbb028e302. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USUYG1248654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa186c292184a26182e7f6bafdd0af5d6c9a0bcfad78d02feae6de88e2028fb. 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/USUYG1300231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0033ff791edb5d9cb4ab75f31f2b8dd82b15776d3b6f8f0db467262dbead9d. 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/USUYG1338351.
Still 713 (feat. Trae Tha Truth & Lil Keke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7c29916c82330768169c3130e1373d0863e531e514d830d3beaafc5d3c5bfe. 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/USUYG1461179.
Big Tony and Trouble Funk Live Chapter 64 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c3b8f2de6f7bf9849d30fdd598143844c4586f978223d9a66363d13f02cd52. 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/USUYG1744791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af124b04a2568c25b1ec3078511a3fbba0bf3ad09780f8fcfabafec38ad221c. 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/USUYG1744793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861f2f84271551bfa494715d9dc4c242dd468c4fab6bac1e911a97a57e4c4e86. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:03:47Z), 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/USUYG1744795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a51ecdff55bc85b0dee914e73a6a44071bb805966cc4cbb69eaa339e007c946. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:26Z), 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/USUYG1744797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b3d47dbff5cecfc7f0d11d2f05f0193c7989f0908c721c850a922171c28b19. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USUYG1744798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1eab5bc92598ec8ee7ba48892ac08de516eb59ae18b3aaa12b03787387f587. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USUYG1744799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61111dd433b4dbf344811646592d007f63380b406af9d66bc5a34726349025a. 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/USUYG1744802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68451a70212210bcc8aab3eb069fafedef18fc117540ed64eb7123a5e46e8a8b. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:29:10Z), 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/USUYG1744803.
Who Got Some Gangsta Shit (feat. Trae Tha Truth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a99febc578e40524aed902dd4c7563aa2d63be9f1f8ff64b83da9680f923cd. 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/USUYG1744806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939157fc49b31503c19e1eca3c2354ef58d4c71b527852fd08a391e4f87f48a3. 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/USXQS1923726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a9d963e0332899862b9ba8439fa5697bc662061eae4e06541354806036b161. 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/USXQS2229338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434bf3ae985121968a90ff94304377d6d6a04d8e7588ecc6d78f794bc43e9587. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUYG1259976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e2b168e8da2f85ec98d68502cad42cdd57cb0caa2f85342bc5528ab402df44. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA61523066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ef80b374b1461aa6f48084b978afe194327b97607969f5fbe079a607823420. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USXQS2439616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d32d00a1c73c81c393cba12808631c541d0b0b2d86f76b8bc49c0f1c372c11a. 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/USXQS2439617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f897d8d0e9bb846037e8ef4606794965a8601b6e382defb0d46e9afa1c8646. 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/USXQS2439620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74ae318b5e1f11b2ec0380aaf537232146eb5135990bfe01b8e896757ecfb6d. 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/USXQS2439621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac58a87581fa8b2bad0c3a9b371005bd8b912fe4b1439e4a211f2d103a0d7c9. 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/USXQS2439622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0793fe7eab6826c3830dc6d7f7f2885b74ec5df92298fa4863ee480f3042e8f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USXQS2439624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf819aaab4ad4926b863def56090a837107d4061a3ab1188717994db2f9a394b6. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USXQS2439618.
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 0x43ad0548f4b1abfea9c9dd75d695eff4f1ad84585b09d6ad29551b7dcd4c3dde. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USXQS2439628.