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 0xb0ffc5864a3ba9a55b5a8b7faf15f0913cf0fbbc63bfe78a4f54c06ff89d6ad5. 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/f1fe151b-7c26-4235-b333-19c65c53b2a8.json and https://artists.proofprofile.net/proofs/artist/f1fe151b-7c26-4235-b333-19c65c53b2a8.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 0x29047f29e182e47ad3cb4cf7796d9ec8bd544df044e2d33bc8a0a7bddd527b84. 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/QM6DC2099830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6652f22ff54f83b39984742de50cdc7cb19e779f3f34fa76b2b2c5ccf0eec751. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM6DC2099832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2edb79c69a8c15897a11bb295881d99f2db20c7b6780e25a58ac88dfc7e1ba. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM6DC2099824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5214cb06b286a33effdff9796e7d20a5e4cdcbeb6c1ada23fbe058f6b1d2871f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QM6DC2099825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3127c5d7680ba543640c982b5fde6044a54ac88d0c666de2ae1a133cf165362. 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/QM6DC2099829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e9333d99a68e5eb3bd98401a6c304bacba7e558e330f3d031f5013fbfcc98d. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T05:38:04Z), 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/QM6DC2099835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30b30283ce3e32b492b440c63d4671fc150fa59960697ccf98d473ed18e9860. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:19:46Z), 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/QM6DC2099828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e9333d99a68e5eb3bd98401a6c304bacba7e558e330f3d031f5013fbfcc98d. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QM6DC2099835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf171eca3ef8bd787b4e70ce16432054205de19cdf7972c56fa520d2ad3cf4c76. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/GBRKQ2550001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1bddc6ce38e12890b41ed38b28f27605e982c5c5a9ac6f65c9ee2cee984c81. 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/GBRKQ2550004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc795e6c63854ee5ec8e2bf57f36edf2ff79bac8b38d3af65940c715cb2f704d0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:00:05Z), 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/GBRKQ2550006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6001d89faa87cf13502d4de029abb0e566227710d79d5f2df85d4742a9abb855. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZNFJ2110325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d43303ef2d417750f2d04a74dbcf09cfd19a2e98cade688157562d0985169f. 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/QZNFJ2110327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ba1a37af8e0e3e7fffb8e2fd33c2b6f495795ec4e7c12502cc5b94f2e3c999. 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/QZNFJ2110328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b85e46c0d22698c069c1e7f708a880734c8907c4eae392adc333fe15cc80c6b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM6DC1696332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb881adfff0754b50c51847ae7e607104a6285317ac1e492ccfcf21bf5f3ca326. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNFJ2110331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46478f4862bec44dcadbf7ef7ab3928f61d44ba34384b1b4672c69c37bae7607. 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/QM6DC1696335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d077fb3d389a2adb70ff062b9d2071cf9feb493e8fbdc6e9a6e95ac8877516. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZNFJ2110316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c237b23aa8400d1d89247abfa9611430916765d715f406aa2d2801a482ce80. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZNFJ2110318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46478f4862bec44dcadbf7ef7ab3928f61d44ba34384b1b4672c69c37bae7607. 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/QM6DC1696335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f5acca9a79775deeca09cce30f41bddfcc2ccc014d03b0952ca60e25c84b59. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZZ8A2415718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2be9ef2d7614770b3e354cbcd4ab40cdf14ed77279d2cbaa40d7482d771d9ed. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZZ8A2415735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d160b52ada56053d11b8ba375e4d25973a554db68c3fa301dda4395c5d79dd. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZZ8A2415846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96a6bcb682bd948f74d2e75f20b9f1c19ee96b35654968fadf7dd4d09e63138. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZZ8A2415848.
Cumbias Peñoneras con la verdadera ¡Seguro que sí!
Puro Navojoa, sierreño romántico. ¡Seguro que si!
Cumbia Mix: Quiero Saber de Ti / De Niña a Mujer / Vuelve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68edc2d328c663e37adcbc4a40aff6a407946bb184f5274a7c2df2fc4adede18. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ARG991048252.
La Reina Sonidera.15 GRANDES EXITOS, Vol. 1 ¡Seguro que si!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b012001ad74a43fdbe5916fd956efe02d09b85d4f4f6cd739c6e97f1b4e17db. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:58:30Z), 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/USLZJ2567816.
La Auténtica e Internacional. ¡Seguro que sí!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea129d5d74ca54547b89b16cf35dbb69105556cb51367a35ae0325e7f6222d2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:49:49Z), 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/QZWV32546807.