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 0xf0097529b300cd86ae9166efab12a0d01b52a0a8d4c7054eb9d8b4a405730cfe. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9eed525c-6d07-4610-b7cd-9d4582db1c6f.json and https://artists.proofprofile.net/proofs/artist/9eed525c-6d07-4610-b7cd-9d4582db1c6f.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 0x248bf31d040191f12498c760010fe8e996ef5b0c3d4d87c41a36609c9620891c. 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/SE3SA2400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719f7917c8b51be4ca896ad20715a1f99fa9d38e705d30f6f8afdd29434d5d76. 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/SE3SA2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfd440ea49321943c9681314f44a65fc84b79d0406ad2aa3da2fbec52c9930b. 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/SE3SA2302301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312ad0f0d537820157f63e5544a3eea1c8bb007b633ec61dc33f818236390eb5. 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/SE3SA2302201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa551b96edb62cd5a78e7708a85ed719497309215a65076fb56cdbca785f2ef4e. 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/SE3SA2400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d88a1512823f9dc5e9d461214ab0144a5d1e166056269058c5045b0083dbfb. 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/SE3SA2400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee002d1b256cdbe80df308a139b1bdf1f526e0ed56b51d7c9e886ee51c894fe1. 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/SE3SA2400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c8f4327d44705ce3949dc0aeab4ec0b0f2bf56f1ca345f3e87586df28380f6. 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/SE3SA2400106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd268135aab814cd55cff8ab4824c017f35485adf831d85d92ab81957605ba31. 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/SE3SA2400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1a3e142f162a29084d3237d91d1e0974487e3446798a2705f3265cddc0d529. 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/SE3SA2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffacb616d513fd74559314d7872ee53df72d9f88729554c89d0000c73e31e23. 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/SE3SA2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3498ff3b6d7d66e2fa366ebd498310751d6128eb08b21d045a58371ef6cef896. 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/SE3SA2300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0694b3bf3a5c7fde0494d9629bf5c504a6d6bbc609d09aea016a8b6384ee6266. 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/SE3SA2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4651d5a9b0ac0fa23acf2a8f473c0bf4625dfbb007770304d8484f5502a4946b. 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/SE3SA2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a62e30038aa44ce809cf58983352d889bc113f34358e8c6af7b4b2e3d41c34. 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/SE3SA2201901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51bc374e65cd864767ea741cbd3974626caf88df0db148221043aa0fb9bd3a3. 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/SE3SA2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abc5073ac77b44e22c2a2686ba2552d27d0a0fac58d23f71e2ca6e80a814135. 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/SE3SA2300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bba22ed7338543a626f086eb0489dc57c0238589f042cfcb751ea55723c921. 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/SE3SA2300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17220484fc1087aaa3f33c2234438f3cd4ed2f7b22ade6e35b9446e3ff520d77. 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/SE3SA2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b439a4c9490494a56daaaa88e829e399c6686f1fec1f752f19e6e98235a10c. 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/SE43Y2100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb115a1ae018f0841c70962e61432e00c84332014eedec48cb0d37b3a2357b403. 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/SE43Y2100405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2f68e27ac4b3f0dd11b48892a6e85eb41f58a78a86ff17c438d75f0df92d65. 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/SE43Y2100403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c27e0a225ba45831e2babc498a9210f887f434b1785f5a1f46f2e19d3904b5. 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/SE43Y2100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab67810c40a9c393115fe5e5896bf8b3da7cc2e475037aeb6dede83b58b0a6b. 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/SE43Y2100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd537b0dad906f90024b75ad03e3ceed04c01160265177da376e2063adba8d595. 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/SE43Y2100406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932530995e65b8301a6e25ccec03033cd7f3fdc11b584fe8e767b378ea595564. 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/SE43Y2100407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68abfd927ff257f169b11c02d6c703ce4c0562cae59a50f8a14f75ceff72d87d. 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/SE43Y2100408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7615d5cbffbeb99bc3e608dedb07b69893614f1814fbe45fc81cec6994dd884. 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/SE43Y2100409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16468082d15c007e23bca750206f906b9c2d3d5152bfad97654a264271aa1702. 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/SE3SA2500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b497c077b990002dc355454df950f168be2ca0745ac127f8bbeeb3d22359af. 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/SE3SA2500802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db7373f9ed86ff2d5f7b43e43e1423275c44e9d293c9b382f1bd230c447cb64. 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/SE3SA2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfd440ea49321943c9681314f44a65fc84b79d0406ad2aa3da2fbec52c9930b. 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/SE3SA2302301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1182a31fab8a0ff07ba4e3e659e19dc565f9d11120c28b62cd0de5f9a70fb34. 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/SE3SA2303101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312ad0f0d537820157f63e5544a3eea1c8bb007b633ec61dc33f818236390eb5. 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/SE3SA2302201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82b9e52602141f616a958b170dc8835a63607101464d256940371afb5db3a0d. 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/SE3SA2301401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f68be2ffc23a0d9a314279646a1e816ea89f619295c745e4200bfcb04649242. 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/SE3SA2301402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffacb616d513fd74559314d7872ee53df72d9f88729554c89d0000c73e31e23. 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/SE3SA2300102.
Tombola 94 - Funky Loffe Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6b27874cc00c25d74824f0fe8897e41cff481488f55086d1a8949dddb96dd7. 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/SE3SA2202501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ad4d8b8e9c0e9c1f536f65aa72f99ff308ee627f86b48fcc47ba6264d83d6d. 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/SE3SA2202502.