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 0x3597190c60bb3d7c9774fa84373ab741f3ad21020d355b1b3d582fe2fd9b87b5. 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/84326236-1c5d-4cd0-8995-9bf315813980.json and https://artists.proofprofile.net/proofs/artist/84326236-1c5d-4cd0-8995-9bf315813980.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 0xc7346faff435b5ccdf262cfa399593398c41c0fd1e3e7fc0a6bd10dc81432350. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/NLYK92100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc254920e221ebefaa3f49bf370a9f6dd3fd7da3a9b33bddc6300a611b965459f. 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/BCCNG2200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce37af54762deebd9a3fb9e0a209d553688df62a73c500a1bf3d4669d7a38b18. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GXBDS2312962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888e3f72a4d9c27df5f677ca41614802cb6e7ea6d294353056ff09c7f76a5c30. 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/ITS8K2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d23a1f8304c50f8fb5b096b561c0995468790f7c478b880430623bd39f60e3. 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/ITA892300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f987aa321e1877b4886061c0e96b6f0b5beb08da6c8b20234620c53b2cbd3e. 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/ITA892300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff38fc43efa4373300c96a9d97753bd078c3bfb2896fcd5d3b23cb417d5a0bf. 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/ITA892300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350eab05bb2e27174625f0c7853f5183402ce8ba85e0c9990d46121bd5a1221c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBKQU2459301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc639356bea74c28e19f812eed2c6ed61c451540b3cc9b9dc8e98d6caf3ec1de. 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/ITIO32400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866830b1c03a61d1f782fddd5199f291d7d60de18c90a59fca7f206167927913. 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/ITA892400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf163f082b9003fa70ed055819903faa0255182d56dea4fc94e60f01f1ca3f9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ITIO32400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3e1d05652872d8c97d59af0d14ea18151e3d4d741ffb1196c30371bfa57f50. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NL1DT2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c007d7d335396437d37d6f99b2fe762338a7624aba840f98fed9120ba870e12. 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/ITA892300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1678317ae2ee65cd6679df3be59edcfec2a9f6545300a08052439b0695a23304. 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/ITD432300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dc345a8d58c11716ca8513bb1bb0e071bbd6f43d86b141e39c98d421888792. 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/QMDA72247685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0581e473198f45b9ba7778d909711316344d19291e7b472a0ac49040ed562bc5. 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/QMDA72247631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe208a0d8daaa5faa787f6521263272a18d5e8a873f9a7a4c06d744e6194a8def. 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/ITA892200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0638c56959e7384ef6db3ebe3f273d3af99cd50d84cbfdfdbd113f10b26f6d4c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ITA892200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfec09650681ed78f28fc3c21208822b6f8c3125df6f2a20ffd05ee60ef8e635. 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/ITJ872000622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9003df911d1a0c4fc7c76ce2f1af401ea8c4d5d5ba0db1bfa5dd5c216a5669b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ITJ872000623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845f268e63834ebcda7975e472d3cb8034f19f6926d63de11229d56385f58c9e. 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/ITJ872100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324463be7d03c2aef843412382f5b5daddfd3a45291acd6793b06c489de16ba2. 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/ITJ872100468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd433421def8e1df6380d4bbb6eb5f3a9cca61368980f9856688165e743815e9d. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QM6N22127198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307c2012b921672f74d8eb22a412e0cbdcfb187ccfe2d3b1437da944d98b880a. 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/ITJ872100155.
Play With My Body - GET FAR & LENNYMENDY Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7735b00f87ed9aee89821f79bddca61ef62cc6e94dd5984c8b835abedd81215f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ITV951900070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f68326b7b8cd2899c68a403884ab4f5664dd148e36d127a21396f462922b27. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ITV952000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78d66b524a3dcb124ca039166d8da70208b151599a30dfb3d2bf9135d11daf5. 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/ITLA71800560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dc345a8d58c11716ca8513bb1bb0e071bbd6f43d86b141e39c98d421888792. 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/QMDA72247685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0581e473198f45b9ba7778d909711316344d19291e7b472a0ac49040ed562bc5. 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/QMDA72247631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc254920e221ebefaa3f49bf370a9f6dd3fd7da3a9b33bddc6300a611b965459f. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/BCCNG2200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324463be7d03c2aef843412382f5b5daddfd3a45291acd6793b06c489de16ba2. 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/ITJ872100468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7827ca779bd46b5d2d3ecdbc4bbd92328284d83979fb4da1098afae2e01abb. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/ITIO32400067.