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 0xfca9cd93cbb325289789cf12d6a4c3331aa2ea2b33ed364d478cb04e5cfca33d. 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/ac3103cd-5c7c-4a67-9eff-bdf7b84edd0e.json and https://artists.proofprofile.net/proofs/artist/ac3103cd-5c7c-4a67-9eff-bdf7b84edd0e.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 0xcfeb2ed51f0122f9377fe68baf5aa76f625f4517fc5d3670d07d12a0a719dfbb. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/MX4971535813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4dcd3b542bd0ce7e47940b60abe697f935c6831edf8a36ec7bfe4b12ce3a69. 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/MX4971535823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688132fafe3f54c98a2e1c63e68805d45876aa43182a0327fdb738376c07257e. 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/CA5KR1813184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a993c3bd19ae502f3b5d9063cf048cb1888404c2489e8addb3feeab328c346. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:29:51Z), 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/QZNJV2186621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96313d485705e3de607b5da81f2cd616fe01115c5faed6984478688c9041513a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZNJV2186624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ed866bd1ff82fbc6199cda271168f5d08805aeccac46eaa9d37facd0e9576f. 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/QZNJY2156285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aff70722f8f11bb7e8999861938fbaa82c2cc32c1f0dfbb5e22104e4b3abde4. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/QZTPX2172534.
Una Herencia en el Tenampa, Pt. 1 (Live)
Una Herencia en el Tenampa, Parte 2 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dec91287826b944b9777ee15fee7fb0d608cd78ef529b535292b5362b4ec16. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/QZHZ32297545.
Coqueta/ Vanidosa / Que la Dejen Ir al Baile Sola
Concierto Especial Feliz Día Madre (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07b743f0ce1309c39c1e2c9143b4cf202279cd0327336b099ce2289d58a3a03. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZW9N2205061.
Popurrí De Cumbias: Piensa en Mí / La Chica Del Este / Perfecta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517a3efb7330129a24a9281c634ccb8f4e8ec12cb28f282549c2c0a55cd56d14. 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/QZW9N2214223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b73cdb4517d4245ea12ac2c6bf5a93dc990990167772b8240ff48e9d88e09be. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:03:51Z), 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/QZW9L2370028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1b7ba17011f35a26887ba7cae14589041a8d971cc3dc9083f85e04b1a0c255. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJV2528051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411c5109f880447d2cd373a13abfb6bf3ef3a889c696ef9c0ab29b221fbd7b3. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNJV2528052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf7cd50808a85cff036acb5fef8acaf669aac131cc125f839f735af48e69cac. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNJV2560705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292a28325f0db594d204ccab50f5a927e3563a8414635c67cd8847da58a71d7a. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/QZNJZ2584108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cabfc2dc7b645a09050e6c613f1b524339aa593ba396090665a2558ed7c887. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTPX2556290.