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 0x30334c1979aee091f02fd9e6b874a44508c72493ea081058c195166003d32fc0. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef7ec740-ee2a-4434-bf89-3ded1cf5d37f.json and https://artists.proofprofile.net/proofs/artist/ef7ec740-ee2a-4434-bf89-3ded1cf5d37f.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 0x5c21a7f652dbed0866772893771cf3a9fa4c7df3b80dd89e3c33b589592208ab. 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/GBKQU2326600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9cc71e1c2b8bd0a1db701316aa9ac61351be7c79d56959b4ba6efdec2fa543. 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/DECY51901784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20f3d0a67c8f7a20922048a406b015a7fbaefbb48bfc48536467775c7ef90bf. 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/DEW871807488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60abac26dd54b2a075a406749d8c083dbf47f2cce14051196d361842bafeb5c. 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/DEW871805509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e67b54fc6ab3e170af626be5043782f2defb633d468e28b36558ae103afee45. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/DEW871809158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fca44bdd9d85081cd4844a4fbb35ef704a74e0da7ab777a5a538843418ce2ce. 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/DEW871402136.
Cocktails for 2 - The Dead Rose Music Company Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e42692964141d80f6dce1e2dea97a56bc58f2ce7f1b908e8deee1d7c677bc42. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GB7EJ1401304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ed3c68704354cefc639f1a49346e589104bc707e5eb1200c096018f8801bf1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GB7EJ1401305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3c7974ad41d64ab0f945cc1831fe123945ca911fbaecc7d52bf99bf58ad795. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GB7EJ1401306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd66df08212482686ae8fd8855ce66d27be037769c8b78b93979fa044320281. 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/GB7EJ1401308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10efcadcec5e8478e68c9874557be93de1ce2a2691c868e852b011332f3d1f3. 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/GB7EJ1401309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32e7293269ae81ca38d6988b540636efb8df15313c583939a324230f2f6bf7c. 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/GB7EJ1401310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736a8474b186b2f10be3c2a504a4d5c96226292df89ce56991af349a88055587. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GB7EJ1401311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa48424fa774d6f76879d22abb2cc978d6dfa1ed27aee1640cbf305596a2560. 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/GB7EJ1401312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be8a531be9c83f743ef460357ddd131e71afdba92169460d3e8f127970703cf. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GB7EJ1401313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ca47af520ccd1f96d43b6f99c55f673d9fbe16de638d093145461725bf5fca. 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/GB7EJ1401314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c1c96d6cb5589ba8ab767917edf69abbd594c7f30f5be705514f2aa7928bed. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/GB7EJ1401319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d8a399bedd88336de97969097f961596019f5b722759f086572ebcb1c52b65. 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/GB7EJ1401325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cca99e462ec4043cd80bc466d22c83485b60b3c48b8e0ae143840e19d5125c3. 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/GB7EJ1401326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ce2ff584714d9bd9162d1b1e1abb2e4b41f4e4032c761cf0f6b906250b1808. 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/GB7EJ1401327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4090bc11c0076b04a54f38d2ec888e1213655897a6125043b3bfed9165f3a21. 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/GB7EJ1401328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1b748ac4db617025d5b5e69fcd10bf5f8daa149f4c337409c91aadc0a067aa. 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/GB7EJ1401329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93385be67208ff96856d64c0bd1b575beff8fceb5c6c89b3efb8b0e0e969cf16. 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/GB7EJ1401333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeae6243a86b9c740c5aaf8b1fa12927e587e621d68216210872006adea6a77c. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GB7EJ1401334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b33b08d8624227cd802fb481f5bf2dbf5ad965b5d8b2e57edc74e173e5f93bd. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBKQU2169971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9a2398e0138d3a93eaf8a881379c42703f625c5c608db5b31b71c760edc649. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GB7EJ1500676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bcda470829e2a22b9aa090466bd3d929cb4f1c21ac822b9af1653164001ea7. 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/GB7EJ1500679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d3aeb7538732139c36bacd0007e15cbe23e4cec0d0f0f7d74335bef95f94a6. 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/GB7EJ1500680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285acb8a40e152cb55df31ee275e1118f57c8bf2e59815f42a9ca4977560ebe3. 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/GB7EJ1500683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab258f29585b1e5d0d63e9aa00314e4b597ec1708e758e15f9d202c9453ca4ac. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GB7EJ1500689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eddcfc1b58689b4d5686b309d030946adc57c071722ad7f22bbe1933c246630. 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/GB7EJ1500692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f38902344f46bb18f415805e1822b2b0e3205e7e04854b2fb26e0a37462081d. 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/GB7EJ1500694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b06ae6549dfd63738c996c4b7068aae99fe623c04015590ed44b45fac3a436. 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/GB7EJ1500699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d89d0a22094e953107b17ddcfb84623484ad0111ee6f4a0675c254219d97c27. 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/GB7EJ1500705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3fabdd0fc7b559364541697816fc0ed63584d3f7a86c0b5c4706dea063a1b3. 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/GBKQU2151891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9fd2570ea90ca3ee2b1c714376f1739b7a9af841bd4cc5aaba9cc99d2a3b98. 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/GBKQU2151894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5294b1c1f0b5ae742346a688a47feeb25c2173d9a4014cb694aa0d3da783919a. 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/GBKQU2278126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b9c0fcc1f897846f31257c488f38e97740d0401466e246959981d34483f855. 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/GBKQU2278133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810c5d1aec2159b7fb76ea9f671e1109873b936d70b18e1054055fddf515638b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEW871804499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d904a5e43ff3060e6ffc849c80cc872330e5491778850aa71f810c09dade53b. 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/GBKQU2121373.
Love, Alcohol and Dirty Jazz - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f8fed77631b5af52ac52f82cd9f61bc13fe057f7493a80bf08b534ca8e9b7b. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UKR6V2273330.
Nothing But... Funky House Selections, Vol. 13