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 0xa5db0061655f0194c973d242fce5eba481ca43366fd33dc02439747ed9b3f3d0. 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/1e25d4bb-4a4d-485a-b8a5-64bef5cf205a.json and https://artists.proofprofile.net/proofs/artist/1e25d4bb-4a4d-485a-b8a5-64bef5cf205a.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 0x9a6337e95bfc3bea322c7323b28847b7adbb150f6d9104251c567fb863f3866b. 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/GBKQU2065367.
No Return - De La Swing Remix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69c575b7f7e33254d391fe01f1165545076f3226ebc494ee71b21568b76a7bb. 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/GBKQU2065368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdafbc3fa65e5d5c7c4f005bd536de223a64ca40aaa99204da2e170295b464b. 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/GBJAJ2102281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a0c13c4cf22854fec5c1d4f16a459d72768db6959c4e7a3dc5ec94b9313bcb. 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/ES94G2017705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e871875d4138eb9209fcf4281ac2abd3133db2b60d85938ccc42b8ff3cf999. 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/ES94G2101505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a44ab6960dc87eb55f60292e460de9798f1042d47ba1d79576023462c23d27. 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/ES94G2101506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f53eb69a9c584a7831e81ca4a3120e587701b6e7ccbb8ece035ab94b086070. 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/ES94G2101507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b04f7768024b3ce7658ee13bcdd436ad2ca025f0ade34505d63aa6e72185ee. 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/ES94G2101508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba10849f6356853cd0518bb1375614bb6ef90fc6f11f086906af922b49ea336. 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/ES94G1900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26be527677e27df5be4c2e16fde4299d680a663f999adae7cea703c8e12547f8. 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/ES94G1900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428a5d4738038a491458b05d0b606dd49e74a1b23a21f5da18180d990612ec81. 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/GBJAJ1901167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64bcf59cdfd82bae131ac722c9dd395e42b72db5361b7639509a4bed45a35a4. 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/FR59R1894082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6433a74fabb4b8bfce8902c9f6f79c0cea5c1da23555970cdb3d57fe01613914. 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/ES94G1813505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21db09a2908aa40222c4d26c479765c5a139168e05772d99c9a5de432376abd6. 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/ES94G1813506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a210e3512ab1adc0f6cf511b41697e1b5f27ed4b9abf6137b8005c56f80d2d3. 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/ES94G1712004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb9e5b6e28430379a2ab58200e05811cccdd4071261e322d9e21e5e34b2ef44. 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/ES94G2202605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ea5500d9a6eb1dce456be810e0fc40660f20c5cd1bfebcf6f7d3a2a48973c2. 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/ES94G2202606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9b6b24c520506e82f3240be0a76ecd767426cb4d877263277e4b0c501a8aa6. 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/ES94G2202607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c45fbaa47ad080db66d1cb96cc19afad3ed8b2168d9d86ed923582e13cfe1b8. 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/ES94G2202608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83ca3d1513db0ef7745a26cdef13b433dd7169ccf421f5a7fc2f8cdb50ef286. 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/ES94G1711806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d543ffba1a6f8696904c5b6a4b084cf8945aa8373e06dbfd17ca50206b506a9. 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/ES94G1711807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522d76b47332451bbf6785ec384b78238adcf2d7c5783ba159fde3f94a54758d. 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/GBKQU2247635.
Sometimes The Going Gets A Little Tough - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771b243eff100ef90e34b71d53f0534676858d2e685dc141957b126ac2d86064. 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/GB2DZ1700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b9a46ca9b69f1e99edd574895f9131f929600bcb7c9b7276c780cf1fbbd0b0. 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/GBSCL1813016.