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 0x35e6e4efab5c5a675c9bc64a66284d28b634c40957ce68c6ddc546a050c10323. 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/aff998e6-5d5d-4b61-bcdf-be2a26dca8c5.json and https://artists.proofprofile.net/proofs/artist/aff998e6-5d5d-4b61-bcdf-be2a26dca8c5.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 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 0x980ac4a2802d8a002883517938fc1dc3e570ec9d8302511ce8d386091b7a9b8c. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/TCJPJ1939975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e91c99c13cb0ba1f5ec14e76308ee85f22265f13ef1a21fbed4d87ffa6ef53. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:11:52Z), 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/TCJPJ1939976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d8a4ed87f2288efb82d70c968206cccce2502226c427f9519ed4815e17ff0a. 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/TCJPJ1939978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09821dc4e9b4b6968ebdcc76bbb79137279db4093dc252c1f55809a8b1efbebb. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCJPJ1939979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fdabfcba8e973646922693090ef1cd182def0e2bea4f0cb1747cc38563befb. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCJPJ1939981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf220087818deb34afea11b096b98d2f620970570e76d17b0808805e4a4380ecc. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCJPJ1939984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3062ce897ff8a1f079da4d65f980ac6c55cbc077db5ce72a9c58c175287839c6. 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/TCJPJ1939986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd154496517d1eeef19c75cd6495756ad462886a781e80f54a5e70fa462bb8af0. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPV501500906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd2463cf5a52c12967600830df7587e4e3ecccfd51beb3067d6c876152b9367. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPV501500908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242a1e08a7cc1d03ac16518f45a481b56e4995b81834c123b02d993a66dc8f9c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPV501500909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da9315de56443371552873aa4354d277dd3d9a42014671b9806dde2ef892a18. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:36:21Z), 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/JPV501500913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf7a69927f68cda032691add261a15254b36ddc65e428f6834f014838b2cc3c. 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/JPV501500858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf44885da9a086105c6c6ac9701671d6d883d3ff63770741cff75309a6f3125a. 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/JPV501500914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4588ecdbb49026ad688ff71471f0eb706b40ba3c5c96957c5d3a1b46bdf80364. 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/TCJPH1808531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ac11dff39b554af9255f2a7e8b6b57f1d36645a8bf64b5a3461e1d98c1680e. 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/TCJPH1808541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ac11dff39b554af9255f2a7e8b6b57f1d36645a8bf64b5a3461e1d98c1680e. 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/TCJPH1808541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d3db495b9e73d89bd2f2d50b7af2156ef9226bc677dd4bba6c595cce4f7085. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPI1830145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48389d7548ccc305106bd7a4c80cba84a74685de58ed73e83afed344fb2743c0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPI1830147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2b162bf75e90f8b0eaca3219f98e62258aac2a5dc73d799b8914eb3c87485d. 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/TCJPI1830148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b902ca8ae6b8f9d046ea920369d298836881097a95006c07c0f874ee7d4bd8. 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/TCJPI1830149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15d1a1d720e068e017b556bab70b0d479167406a2dc8d297bbf70904cd6afcf. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:52:51Z), 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/TCJPI1830164.
we are in the future (feat. JAZEE MINOR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01af7f746f99651a2d8ca42bc94dc109d7aec944a1c0ec97c9281f594f813731. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPI1830166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f339494180a6af7fbbdbd604c87831aceab6bdb2546bc25353548c0c8e92c9. 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/TCJPJ1943128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b04c0cf672df9d8b33590e576904776cde50173b3d0be9e70d4280d94495fa8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCJPL2027008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863bc81e994836c8af834b9152ecc3c9cd58f438fa0737e90db54900e8b34b25. 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/TCJPL2027010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88aed7199e54ca464d1aac29101fc355ce8b50452e0719704fc74ebca445cd9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPL2027011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af3fdd191583ebce1ba9f818db4ecd7678495cba5608fd685a16ad71689ca23. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:46:25Z), 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/TCJPM2058671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ca0ebef51390345f95fe7db4e82cac37a5c34fc4f45e40656e6064c13a3309. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCJPM2058672.
ur choice - Freestyle (feat. MONTANA JOE CARTER)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6620ad934a77067194f96e1a4b416086520f0262d3c836dd028e9d729ddacb. 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/TCJPL2525026.