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 0x924b7babd620757721f839794f065b5c774b825b946b7bcfcff7fb58b78fbaa9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/646e62cb-11e4-477b-ad0a-1b6aefb386df.json and https://artists.proofprofile.net/proofs/artist/646e62cb-11e4-477b-ad0a-1b6aefb386df.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 0xf3cd61d799a4fcfe29459901334226c1d8e263b5c7f6dc457fbba1db9a3ec025. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US3DF1624811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6430c9df99d7ae9bbedc3c6eab2320c950cce08c4e3c1fca78008f60a6a94797. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US3DF1624813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf067435ad13e02bd6381521d5ef67154d4121c90824fd6a1365d0796a1018f96. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:44:30Z), 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/US3DF1624818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3169df6cd0fa5c04842709dd9975f5e75b8e17287b26166ddec9c9e16afb8fb3. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:06:28Z), 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/US3DF1700324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecfb13319cffcacc60b808f5e1bf880cc7571b96ec261d06663098593fd9e33. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:47:03Z), 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/US3DF1700326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f278e255c4d3614b45fdb688cef4f2f3d7ad316c7d29e84435c346ca1205e7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US3DF1700327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4a98e28ffd6a9ddc70ee72e2b6aa9a689cbc7ab65a3d20dc8731b170c3bc37. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA2P2016753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3be0797236de66037c039eb6fa70eeae221de8a18b3356650446742008aa7b. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/USA2P2016755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc59c85be37c8bdd01d8d5476472365d7ef8b3bc94985d160349d7baad5173d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USUM71911741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5e01d1149936efadcd623e0a23537cb349331d9b006aa9a81e1d310fa3cca8. 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/USUM71911745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a42d5bdeacc5c2d513e3ab6f37ca31c0719c30c6cf6f90e8ade9182eb47545. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T04:59:35Z), 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/USUM71913217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d835430165796137627d9ef784ef5d6f0f6d7f05071ece4c25b9dd6bc94c4e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USUM72003060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c640ca94c1a3b3f61872e83cbadabe6cb7e75a3ad3b05171869e3a4333f57e8. 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/USUM72008065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606d006a5b0f5e449c68f80d11817e0b9a9b4d5843466985e1ef30f76b9815e1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USUM72012290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3effb41308aae2cfc733a32af186c01447f060745b3ebe8f42c595d4410863eb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USUM72015143.
La Navidad En Tu Alma (Con Fátima Campo, Uriel Barrera, Daniyel Valenzuela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11349456587227f9af6790d83b45294c8ece5fdf872de633a36bbab43828bbf. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USUM72104453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f479906827129cf18cb757f31d16fb1d9187047547338fdb690cc56743e412. 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/USUM72204060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e01ba197abd49808de215c420e23982d8b9befecbac596b5efc1a5f8b85e508. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:24:05Z), 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/DGA0Q2495226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7bda7917c113789dac32cb09f81964e0251c24bffa0f7f0cfaf1d521bca507. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA0S2496188.
¿Cómo Te Atreves? (Con Neto Bernal, Geru Y Su Legión 7) [Versión Acústica]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7962369d3855a3b72aa10192fbe85d0cd7aa4bdba47567eb8bd5e1de43300db0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUM71923990.
Señora, Señora (Con Cristian Jacobo, Geru Y Su Legión 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf7225809495e1bf08a083c7bf23b970c014ae685812733c2eaa3db82faa9cf. 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/USUM71923571.
¿Cómo Te Atreves? (Con Cheyo Carrillo, Geru Y Su Legión 7)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b144a5a575cd5f9e3b8709d7a4a88f1cd05d4f45e94adbe965ca4b44af3bc0f. 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/USUM71913176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55979abc4e1b876d231d63340cd6d5854a44d1395299cc2a26d5bfda49f3dcd1. 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/USUM72010003.