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 0xb1212f593f62c0e981090f0b407fde8a6085be9c78b534ee2528f544934e8d88. 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/45ae290e-b4c1-4eff-80a6-894fbfcf7253.json and https://artists.proofprofile.net/proofs/artist/45ae290e-b4c1-4eff-80a6-894fbfcf7253.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 0x06b75057ddfc0db09885341fc9eca0033737013d9f94a0b95544cdcd6e3af82e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR6V82146813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29ed686e469ba101ead82eed2d1e0cda032cb995c14f8c645b282d34ffa9af2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V82146814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3199ea541c8a8dc8858afcfbab290b91a1e86e569ad9f6a94d9d209267c15c95. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR6V82146815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc084817471c7610deb523cb16bdf48b851bb02f0663651aa6a546df40c0b2feb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:38Z), 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/FR6V82146816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0a9bac0b15e848d1400628f06f7d1caee5045f211b20dddcea02157a60565a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR6V82146817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7938ceaa137ba2b4d6aaead2ae82ab3532d084993a79f085b6c9f60dea0fe217. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:19:16Z), 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/FR6V82146818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50616396b522ef9960d270cb07eb5031a17ab488ace0e8f9f1b1c4bdb4cdcf1f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR6V82679518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6185387cc5f1c8e1af60bb9ed08b8c085001e202f1ea8903729771465d4f06ff. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR6V82679521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b542de20c6d5d5ab23d87faee8f481aa319d75626f755da88569143568075dc. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:26:44Z), 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/FR6V82679522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa833e036267f6ff53e24e8248c61be054b478a8bdc6feb9dcb220e363624d2d8. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/FR59R1480231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa114145e22f3027d2d586656e3be51eda0e6cdbe0c737e245d295ac555a68384. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR59R1480232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b175497b0406ca58534b444c49fa74eefbc9d63ade96fa85e2a50e8c80efdd7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/FR59R1480234.
Le live de Daan Junior (DJ Flo présente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb343ae7881af9f2e5446e12b7dade0edcba067e6782abbc05f0b63e3608674d9. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FR6V82544516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2658b1d6c68407a80300d5174d6207db23fcd8bdeb73439faf4aa7ad8c5a7016. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR6V82544520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9543ae0a3cc474e06b65cc8fddd5e309a433a2003cff22f7749399c541b6ec. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V82544521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773346d16c7c0e373d3cf1f38637da7f8aad25d1f041eed5e22be903961aab88. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR6V82544522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d9b33b0b818b0c9f3654678d3c37f43533c69a7a3d0af5d2bb514a556845d0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR2X41788692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d1189937518e957adb93e27c30bbeef425e7861da923b446323163ebf95eac. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:57:36Z), 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/FR2X41788694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd08a8d16acdae6ba9d33dc18d705fb2d68b8d5087bdb223fc799cfec8351ab. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR2X41788695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1108435c9d25643362d8279735712d5e11d1e381e54ef6247ee56d6fa74e7a0b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR2X41788699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fca8c4a60b006e0298addac5ce97bd7096fa6d2d1c9bac3037b060bc2fdb71. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/FR2X41788700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2886e452dceb8d3477c7d8dce1e366558d78f5cb7494986f30f939cda18f3b8f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRX872462207.
Avé'w / Naturellement / Nos défauts / Ma dulcinée / A cause de toi (Medley Acoustic Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740ae1d9c8e9d6177d140ff7269e59426ea0c8ff5ee2dfda87f6a7472f0e1473. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:22:30Z), 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/FRD0O2100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa7aa79d3064be71bf0bda9082d62d54a06e447aeb880e0b85558419c7f9476. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FRX872106900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe3dbf71bf834c80ba53ee11508d9ae7f528f57c348517343b9acf7625d7ab5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMDA72145079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad1cdff26b68287e0c1065ef8585cfb45fd15637ae765f6fe315dd7c3569926. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QMDA72145086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2ba5a0436b044423e801b7b0455399b6b1bd2101829937323ef5eff02616cc. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:06:07Z), 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/QMDA72145087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eeea0e9f94c1ba5b304e5c1f4c83fd130723d112cffeacdfe64b699a211ee8b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMDA72145088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca68b1918dd668ef3927c89c404e1aa20b321edb614530fbb0d107f527c02996. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMDA72145089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f0412071042a6af3117234b6130e26d6c6c9609aad1e6b74dd876c86ba583c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR0Z50000808.