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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2f860ac00922a3ad915276f9354085ab9079988f63c81d3a9f2fbb7349444a. 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/8484156d-aba7-443f-8514-981aa3d97f90.json and https://artists.proofprofile.net/proofs/artist/8484156d-aba7-443f-8514-981aa3d97f90.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd550484e915c448b705130c8f0eb728a543ad6f34e6bbdafe8501911d2bb4a4d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZW9N2269664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f810d5c3ac987c9dc589d1827164725adadb342329e5b12b7fd371ce808ff6. 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/AR5UH2301862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5201aef7f6e15c2f0adde235920a4c1300777b35f3cbe8bb948603a555ad1de0. 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/ARQIH2291837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974f8aa2d5870ad1b574ccc757ef69450c8bc8aa8e70ff48e592a13de54447ec. 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/ARQIH2291692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b493b745fb5b7ea6eab1d7adca3b424104f8c72c097a62dd77736107f828b42. 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/ARQIH2291130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd400148a4de78070af081bdf1a4f0c39814a5834ee6860f3ca3ac55c2933e9ba. 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/ARL2P2400434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025f9e5095be017e41fb1b15a1311ed641e4e53d23cc60b9eee0bc90b2f41ac0. 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/DEUM72412854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de848cfc92f87aa23be80265b9d0204cd6b64c5884fdc6366940a6ec45005b3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UYB282453329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501572c6a98e26a060648a9666ca7fe3b232442c03adcf29a3feb556947dec0c. 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/QZUCN2202071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2935ea7710dda169028a746e828ed26979b427c81b1039abc42438d7b79297a. 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/AR5UH2400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba596eae40defb70e2520541493132c58ee60f387611b3f532afbc19e7706ee. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ARL2P2400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb887721d42b3fec2a49a4c675e87a5aaeabd593a9012bcc78585e71c186adff0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEUM72408427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b52e0f397eedc081b1b35f6806ca426ac2fecc3caab1efef9169c68f4b11a1. 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/UYB292313004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7c7077d6ee2b9cf91a07d585326e2a8af14ab2c2848e245ea9b7ace81b236a. 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/DEXW62400162.
Tonight (feat. Lavinia Hope & 666) - Supadupafly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8dfd6f1a284bc531fb5d17a17e3966d1dd56ac709a341ac03f27326414ab78. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W12422338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf64149e7308d60627723a5ec7475e273154df0cd365fb851d8d83016923264. 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/QM4TX2425574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a1d5af94185c4a42b6fd04711c6e34dab89dc7e4eb5d5794e6d84ba83b9834. 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/NL1DT2400294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedb229d888e4de0163e9ca00f9e59fb5b4a14fed05ebae5b4173c9f936cac23. 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/QMFMG2322088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbce8c65b8beb21de36b7e4ff331fb9deaaff8423a32c299e1c4b1d089dea820. 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/ARL2P2300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748b8fed85b5392de10189eeb55053053cf16ef8eee6b9aa7c3bde6a9a6c60ff. 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/DEN062300857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ba94e839eb61825dd7d26472694803b516dee3431f6223e94821f4c47523fe. 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/DEE862301946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6189639e6ca2534714877b2e3530e9017378412b0047c3c530bb6daf0f3ce5. 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/DEUM72312153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d277d57077e57abc6ac406ec1e2e0070e4e461901882fdf9e18a467684eda5. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US7VG2372311.
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 0x8b22a308914cfe47be91e0a99704396ef684f53574bb27213d5e8901fabfb0ae. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBTDG1302781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f21d5a3d2133c1ad7f45eb6cc578ad73f11bd6a743de95e0f4cd88b5b3f874c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBTDG1302783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5dabbc76634daed220306663abee5a641c59b6c7407f74d723674ec80cfa76. 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/DEPI82320662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb623ab6fb80ca47c952aa0ba12828f7cb1f48735bce6a0daf15f05076f8ae5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEN062300549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8ec9a54f98be232c16d6507a76b4ef1de6265853c49612a33dd778a642c851. 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/DEUM72307796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255e0fc0b92cdf72cc6691d18f30885a2786e3a8b901ffe0f76825bbf8e13cef. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWDW2370790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6a1d47b2db716e00f8274a16624be579454dfa9bb865bbbe3f8aff3c175e4f. 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/GBKQU2342753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bd25f272ade895dc0612be2e6dc34809a3a5d184747e7e0865762dfde6e2f2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DK4YA2304901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb694c5149355c93922b06cf457cd25a50fb502b9be6a5bf6cc39ef7820c99ef3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZS662203263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6338c4aeb94425c0382f03f2dc8eca62fbf7eef11b57942f9b4e61bfa6012955. 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/NLT2H2200809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae0f79511cc2517b71c98bc85ab243ac2976b32373a167c0da0b6e171e8d793. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DK4YA2289301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372fe8d9e4e5cd540f2754fe7e2f1ffdf6806fc69d886f9c3ba1ee75a6a826f9. 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/NLT2H2200442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00288ac27b5d0e3591ef7a15c973291295e26ec228c5bb3457595f269c454ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2254022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9056c88504b03123588a0d508749ea735b30de688c82994cf70157068d23c4dd. 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/UYB282509728.