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 0x9971354c5769ee05c7c51440b2744e8fae918d343ba0431ae0fc8f1b4f7ea5ec. Chain 2 (Bitcoin): anchored in block 953860 (2026-06-15T23:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0382c760-5787-4ee4-a4d7-0bf646c1af2f.json and https://artists.proofprofile.net/proofs/artist/0382c760-5787-4ee4-a4d7-0bf646c1af2f.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 0xc855607d8389b0459e4f8bcf56039464c4e1edce73e406df642d32d9035f577a. 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/GBKQU2095289.
Darkroom Dubs Vol. V - Compiled & Mixed By Silicone Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89ba0399206ec7685b67a893fc0d1230ab2d0af74b9e882f05bbb5410b00a67. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR9W12108813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f62051cba576cf767c3b216ab17d1af523969cc14f3e8e5ba59b4b048dba0e7. 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/FR9W12108814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0f9ccbb0d9c095c89fc8fc7838d373f0d85d501852114ceec3924b52876982. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR9W12108815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b2be0555343693c71c70fdb44767c8f2ed150ad9fe0f6dda91316711ec3b35. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR9W12108816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dec18288edd45eec251311ffa6aec9340cecd9a7b9a2f075f103c5715e1bdf6. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/FR9W12108820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf192627e45a119b63450752661969ff83086409053475e75e5292fc578cd14a0. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/CA5KR2107818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec58dae7662b331785e498894004acb71ad73c42fadea639a2b90c3c3d88090. 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/CA5KR2107827.
Social Assassin - Iñigo Vontier & Dan Solo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ab539124045a4ea8b1568c5a8f8a4d422465cc3981b0c3a7f1f3534585cd2e. 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/UK9J51400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630ebcc5e9fd48aa18d2a6671a640436b70d9a512b4bd2cbacf89d34106fac62. 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/QMDA62157006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6665f3a268fba603c1230a0d37f0fcb17c43c7bb572d3a82831ad8e7843784b9. 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/QMDA62157007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbd6ebb22021f372df8be8a5548b6edc6554b893e302a63dad4957b665ad8c9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QMDA62157008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71f1e56beb653d0e5babefaa462593ae9160580ce05f4abcd066498fc319477. 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/QMDA62157009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9120c5d8bf386474b5a4443619cec17fae051242e0f76cb8a79c6a969197201f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/CA5KR2176938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e287e6861b666e477987add1bee83ca039f8b75d7660aea5530e6b635282a5. 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/GBKQU2503549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc63aa667d998da5c3f7903b1f8c0e8b8ed7365a8feae8143be58bc70bd0fb18. 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/GBKQU2503550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a80a0aae67451a07ef3f70cf34d351fdc7e0374c5dbb62b4aab19f593790421. 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/GBKQU2503551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44096594b1f37c05f74c652d300901d6b670a5d8516aafdbfb6125e0eab62802. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBKQU2503553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c07e1bc1a4afc99e20571a60cf811fc290a8a54317d3e3664dda1de4699791e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/UK9J51400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cd93d7af56a5470033b20de8e55764f15f6042f1ee4d3a90fe554162caec12. 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/GBWUL1902062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedfba32e871ef99598bbb4cc3202ab7815d15c8ded58bca27c52bf7a59ca58b. 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/GBWUL1902063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f888a3da52e6a4d77dbc9dbf29638bbc2ad7ac80dc1aed6b9bb6630ff3efb8. 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/GBWUL1902064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f90e79332f9a9538103abd6a1c08ccd6bbb3aaaf7364b14bdcff24228e479b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BVG5T5221326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb194e5ffb3c8517bfbe0e45899d5cc0bc22b07f49f22d07f274c259850463953. 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/LIU022916488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7717b07e10f2f6077324001c34d4b53d0c41bdead438f4e3776cad8c1d86ed0f. 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/US83Z2302131.
Nube Diamante - Fabio Me Llaman Soltero Neodreampop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9870993855a3542385941d864850e1731a8bcfdadb6cb6356f52fa5e589bd98c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/US83Z2302134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66730ffe4c097b1adfb09dc1eb27355a91b52f3b5bf195ac620670fd581eb6a. 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/GBLV62133460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54e98d422e9e93063897cd422fba9ecaeb95f5ee4e49a6f925189b8edb3a1e9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBKQU2092898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2302293312c0d5963b872b638b19afb2c982d80750490c8ed28016fbbaf0ec. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USLZJ2134429.