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 0x7cf45df06ebfab74cc9694453de9dfc634b04dcfa578e5f553a7e5f6c9cf7e7f. 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/80bce073-78e6-4a30-a957-d54a09bba675.json and https://artists.proofprofile.net/proofs/artist/80bce073-78e6-4a30-a957-d54a09bba675.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 0xf76d81c26968550491d660323b41d5194aa81b2625c9c4f4217162addbd888b2. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USCGJ0620426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239c59443a03f56b5684a07ce57c44e330130d1668a3a0ef1c865aa5a0a8a7d9. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/USCGJ0620427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96023bd2373aae15a947ce6854181bb69ab2e5574edf148696acb3e9d1459787. 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/USCGJ0621081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcc87422e26a1a3d0e54353c0f29c971605d385b5ecb24aa23dd6de1cb4a226. 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/USCGJ0621084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a128c20738ba80ea70baf0f70a042dd8d813281b747de45cdbb63b65653009. 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/USCGJ0621085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2fb346e1819171974adeaab5a98333d6c132fa83688c126eb8260a8a6b2ea6. 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/USCGJ0621087.
The Only Way To Beat Us Is To Cheat Us: Screwed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf10a92d63add074f038bac86efeacf18c89f001fc0c09c5f90310ba9314d0cf. 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/USCGJ0620380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174ac6ec25e2a3862158c9365b8e5cbcf15c2cfc307468a70231f7352e19531d. 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/USCGJ0620382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4657701016bcd0c31879ca9379680bcef1a6b12c075ac38c5bdea3f32d1f1a71. 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/USCGJ0620390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2809fd1c9a6e027763984ac9fce41fb795607c9b11dfe40f54b4e18fccbf256. 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/USCGJ0620391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c687fa37505339f5d9dc57abac4b5294105a49a3d26925563364b6eba94a242. 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/USCGJ0620392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dab96407148ebdba57a1cf12dccbbf7b8aaef9c67253ac858fda9b8f5162036. 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/USCGJ0620397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91282eeca5e8ecd9458ef7e044273899d85e4f3bb3bcf256e95dcb4a52d2bea. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USCGJ0620379.
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 0x98da005a9f85b658ab166ca9761aad44fbd8696a9933cc4b14178969d9cdb681. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USCGJ0620381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1c847984b467019c416fe8bafe73fdda9ba493f5be9552094ec22268e903f9. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/USCGJ0620383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4c08dcc2e385a891243de75865ac691a8cfcf4d14b9c2c2b7d7d058c2384ee. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USCGJ0620384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc509881fa1fa304a7ee50c63a0570ef1df1ab736b5ae9e110c3f75e30a464d48. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USCGJ0620386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3ec22e30e41c85c770884029a58e767d4b3fd8abb1d313b9ba2c14417c341e. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/USCGJ0620387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c76c0bd9a62f36e52a3c2aab6e28aefcd8429fa818db430f6ea8bf96cda395a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USCGJ0620388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24d5ff2e4f9494fe6a11be6263f5503ecc5922915335139e4fa309355643bb4. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USCGJ0620389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9382400b07151528f46e3f3e7402926bebeaa31240939e55cfa62aefd870441c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USCGJ0620393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466ce0df7c79e2682a13dcffd0338847154c75cef8c4e27a191acb702acb0d86. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USCGJ0620396.
The Only Way To Beat Us To Cheat Us Pt. 1 (Chopped & Screwed)
Ballers, Hustlers, G's, And Macks - Chopped & Screwed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6295f69e77a3e549b7548366296ee39559fd8a1b1f4e724dcaad67bccb8131fb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USCGJ0620276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39d0a9c46bc4426f25701b4ed8a165a746195a2edd7cab354592536a9786f6f. 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/USCGJ0620281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e80371acaa3222a13fe0c7a2122df5dbe370baa231d0f6f583609c6409e885. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USCGJ0620282.
The Only Way To Beat Us To Cheat Us - Chopped & Screwed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63ec48dafc16b1ad69211c47f625a3b7b48bd96da9e8aac9a92e18e9ee2c215. 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/USCGJ0620283.
Leavin' All Crabs Below - Chopped & Screwed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5acd76c2916e43fa5d9daefec7c2a9c3c32cfbc2282cd3d247ae44edbbbbd2. 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/USCGJ0620284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa749658dd5f14dad6b16e5e27abeaa040d2365228204acf6b1da00a7938a3996. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/USCGJ0620275.
Puttin In Work Pt. 2 (Chopped and Screwed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a81b33e034b955dfbcac74282f87d28d24c7f1a561715bb5811900671a4b16. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/USXQS1408875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb755c40c1efe703b099d990b929464cb33c2db8a653c305679fe271742cf7be8. 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/USCGJ0620859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c820bf259f68bd13c963f8d15769edb862f877123eeb9036f8b24c7ff4f05da. 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/USHM80541148.