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 0xa3949f82a9c4ee17935dcbf53b2abf6d5fb8c468b7ac337910f55d1c31cd1ffb. 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/02d3c3fa-161d-4480-92a7-788d087c7ba3.json and https://artists.proofprofile.net/proofs/artist/02d3c3fa-161d-4480-92a7-788d087c7ba3.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 0x7dabe3d433bb99203695e198b71a34ddfc527340bde22dccedb57b7ff3b2a7dd. 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/GB8KE1858291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67e8288366a0c2f202359a07f21ca675b3c5de6d0205e3eb8fcceade755289a. 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/GBKPL2289096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de2411f3f5c9a3d5d74914d593a09cf503d2580574a102e0f4a99daed41c186. 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/US38Y2304537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2bd6c527b428cac1c4b4328fecbf9604b208d841a0311c6bed9589d2d229846. 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/FRX452106222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68dee3fcd609bc1dae66fe62971d9f387cef1677726b535988c16874fc92d8a. 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/FR10S2049740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b35c82df6f5740083a24bf9c7ab4ce72f09b7725fa297e5ea2ec3cd5027c83e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2414601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf75c6b4a8f66db787eee8572dc577e90a0163972b3bddfc5425b34f24c3ed4a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2410275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056c13a9aff1a5420267fc2fa7d2655c28918a6b1f0d2a423452b1e397e7c48b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US38Y2408972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7403ef953cbd092fc3c908f706553a09102623f33b930ff9485743862cfa58c1. 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/US38Y2312531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56115d571acc61bad27cf5594914b9327a9a41bbe12272cca73dc6679052e842. 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/TCAHQ2329663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46da5331690c89e88dcb69bf677d3083c12a84caa205b8ae12398e96a2f91a56. 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/GB8KE2324428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9add024d3e59106dcbb05a333e2a6e2245cd893a5fdea31374a88dc25c50a5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBARL2301085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bf0b7b358da0afa4ed6efdf10d02f34fdc3a02da27d73feee59000ac5de91a. 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/US39N2308401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057befa418a06d922bbb70390c61c86d7bdd1597c1799ddef3564a917b844b74. 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/US39N2305194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37954791574e6bc7948d02132292b70f5007c592bf514d92bdd17c679e02e2f5. 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/DGA082219987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765eeb4c5de3469f36bb02a863bcdda7a03b444ef86d2bbfea879b751da0a53a. 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/DGA062297773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786e917443a85d226e6376f999c05ccadf2b8cf597b3de25cae627ad9cca3378. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GB8KE2212292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e797d01663aa6e67c66d656c521411cabdbf0d1168a17bec3a3bfb7f48cad9e. 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/FRX452270565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f135c9d275bb86a704c30fe84acb33f31f533a905a7dbb23c33b8b50b854519. 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/GB8KE2206431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087d19fb89300e5cfc0b9941e7701c26c6faac6b37bbf8f5a5e4b19190e37220. 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/FR2X42279312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a55014eb4d616d79bc53f75b366c05eabc4acdf74e75b610f883b5d3d5c9b6. 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/FRX872134156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bca402d43f675231eb0fd884849fc091bb9f2507d4dd9a384ecbcb3ed2e6535. 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/FRX282100536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342290f3c5cb3234da05e964610ce853f0fb8c029b3e33515ad5fbe338ef4931. 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/FRX282100535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf736c6567e4bc5e77b2d3d0d034f44dc777a7d29bff6dbd42f26711b3ce5f4a2. 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/DGA072150454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea289371c6a9bd95faf240ac08dc24ee2634e07f903a5c646f3b76e2d54c42b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX762076912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0308c3fc5af5586507a799bcfe9f5acad259d5ef433a8d2a6571037444e250a7. 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/GB8KE2059998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5e1d9b337afbd5bc93fb251558b0954973b14c2eaf55578ae56089858a10e5. 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/GB8KE2059997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c62c85f8fef373b5a1235405d150e2e3d7f5508a055e3d7ae89b031a09f138. 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/GB8KE2059996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8017a9bc209e74645e9694705fbb12648b230f7af1f9c73a56b601dd18e5d13e. 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/FRX452053498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88f3ce96caf40a1eba93c66a700ef28f87655a52c4af105f47ea645d2e41746. 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/FR96X1982428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d3416dafcba059b935391a73f557e64c6824577a06a3b0466a0571d6885e67. 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/FR96X1961756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4449c52cfd42d3843fec595932d3a09fb1e0e0216f3ebcfa823cdcd3764c51f4. 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/FR2X41941500.
Bits (Devilman, K Dot, Kamakaze & Pubman Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdbbf04004dfa4dd062a215c4dc482709b92799d08867162032ecd644436cba. 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/QM24S1913788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647e1034dd57bec30628673d3041aeada7c1b64ac9685e093fb8da58166f53eb. 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/QM24S1913789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e3c061aaee2a132588e606527834d93024259f734fdf9c197933c0e7d45c4a. 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/QM24S1844539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e7b447f1b6f45491c63af843a8c60c48bac99a495c2d10a96b3909f58684c2. 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/GBV5X1800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f2a9867307856e2e768919eafe4df7cca9dc90251d9fe219c2b2f01e0aa800. 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/GBLFP2512006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0617d0897066e786ffe8b711fde112c56c8b0226b822c881ef6f8ca5b2876028. 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/TCAIL2450563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01660f0583d15a7f49aac6b3b0389ae0bb9e03aade6b5ede14c390f3287dbe4. 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/UKXN22288840.
Lighter (feat. KSI, Window Kid & Big Zuu) - S-X Remix
Lighter (feat. KSI, Window Kid & Big Zuu) [S-X Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeece8f921770bbb697eee25368ea31b0fc74633c7dc8abd980e269915be96b3. 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/GBAHS2000906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392621e6f4de68dc8673c4f5e79e14373d62873252555b98a786e10fe67e9498. 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/GB8KE1956191.