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 0xa2cdf9fa5da6ab7db301a1b2d8b8b134fc7edad2d4788624a2d15a9db1e201d3. 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/9356edb5-f3ff-438c-921f-34f67d4cf94e.json and https://artists.proofprofile.net/proofs/artist/9356edb5-f3ff-438c-921f-34f67d4cf94e.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 0x40bab24c927c2ccfc2f6070e08514ac7779a1b856815b1c5e42ccaaa1997a2a6. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:50:55Z), 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/QZ22B2009905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe5663889987fa656b2ff43d1bb0bd5b71eb3ead8dca51598086c2c5fa5b02f. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZ22B2009908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422cc524d8890fee77a573bd2496752b34f3eb4c4325e3f0fa52ec751477a6db. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZ22B2009909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bab24c927c2ccfc2f6070e08514ac7779a1b856815b1c5e42ccaaa1997a2a6. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:24:11Z), 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/QZ22B2009905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ee422a8b3b2540722c12b4c9ef66e61a41ed42dbb49f9c5ba14d0056d38d73. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZ22B2009907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422cc524d8890fee77a573bd2496752b34f3eb4c4325e3f0fa52ec751477a6db. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZ22B2009909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a1b9b2333285ee92a72d02fa2fe5a891ad22f21d69a538bb95d04f79355168. 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/ARG991012270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0793cc0a15ed74288644d398e45288c541d534edaf9528f0bec2e3744533f507. 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/QMFMG1472587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcace4fa8a33cb752b3a7a5f92bb4c77a7a406c58661aa573788d3147339eb8a. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T15:59:45Z), 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/QMFMG1472592.
Esto Es pa Bailarlo / Bien Slow / Bomba / Chocopop / Matador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffabe8cafed64688a341b75bf30622f4911d3fd70354aae3e6505ccbeaa432e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFMG1472593.
Es el Pasito / Pa Romper la Discoteka / Toma Tra / Bum Bum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797256f311afec3dc605d57d4df79ed7442cafd1dc60e2ab8d23328e29207e8d. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:47:00Z), 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/ARG101104410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53c2084f2473cff6d012cdcf087e943099a241c7c9ecd06f217a598402d66e8. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:02Z), 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/ARG101104412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0dc7d77bdf9aa27f27d477dbaf1d6a3c00a0cb85ef5c3c938c5a977db1558e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARG101104413.