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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf976f1bc6d9425afe9c2e93cff4b2a688c73d8634986471aab8617904087a7ff. 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/9597426d-02da-42da-bb42-fbcad158919a.json and https://artists.proofprofile.net/proofs/artist/9597426d-02da-42da-bb42-fbcad158919a.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184c27f6653710bc75a53e091e2bd3d575fd82e4f3ec6a8082a618865478e7f6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXUM71602469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74dd2384f76e5567a0e3eac8a451ce6bc1b0bb8e10338e6a457ed26362973ba. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T04:08:24Z), 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/MXUM71700774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c9d184e6668cb5a4186b44dd879b78e645c02ebc9429b9b4c562bada46b45b. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:10:38Z), 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/MXUM71700775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ac696d2a53716a13bda7e93bbf4cba3ed6e9b64a95dbdd9971456239751bc6. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:51Z), 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/MXUM71700776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2500bd0d335568208865a3dd1d069858d0d357823922478881de7553c1d8c1. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/MXUM71700778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb6e964c0ee1a2ec33e8a63db51962b1b49c130dc2d7f53999a814623d1d047. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/MXUM71700779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf9f8928502b5b259572e11afdd5595a697db3d11cad93c698b839167871c18. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXUM71700780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4109afdd00ce72b08e2c4d004351f1be661779087153f0c2389bbe96a9ac946. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:40:30Z), 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/MXUM71700783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e6a7e82fed2677ae445200d5b45e217b121b5f51b2b26501210f31f3193840. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/MXUM71701961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0f656d86d102706b34214ee71b326c005922bbb7f0bedc1d416e9e526f7c95. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:01:56Z), 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/MXUM71702267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742b7fc673474716f81afecad812282d323fabbd635b6f2d784ada1856c58626. 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/MXUM71901426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1dc21a62da30058348ae2b97c04db9b5e2cd0d28a64d2eb442284f8fb19f6c. 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/MXUM71902113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccca659e191fb98ce61c14a6af382a81f841f2c0cdf3184b9a8813c40a3ee396. 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/MXUM72002682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801282577b297c6b3c545a4fe2696d482ce878a036259870eef7c4eff411477e. 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/MXUM72100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2c2932bcf034f2421acdd4be79a11781115a0d2d669977eb23269a226e71e9. 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/MXUM72102335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b2e23ca903910f10ef3d759cb0a01fd7cf90fb46d940f0a6dfb6580721fe5c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:17:01Z), 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/MXUM72102334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a664ac708f2057e3d65937b791d49c5f000fd6549b4b8fd1de6120fb59ce52. 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/MXUM72103525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6db6ea13a38ba7ac4f1510d267e1c7aede52082fa2d3f8f7c6aa21e06ebed1. 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/MXUM72200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf982dcd86517963824bbc70e5cacb00e96ceb642d201e142e2393543a7b8f99f. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:03Z), 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/MXUM72103457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfe9907a8a1577d9f90114fd399b510799a8d3cf026e456a58f5b2b453532e7. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:42:00Z), 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/MXUM72200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99de924c81a46ed69dd3351c8ea8f1739436a3327ef9515adfc2f28a2b0bc49b. 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/MXUM72200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f62e5105c08f47411a2cf4a7134f42b1a1de7ff4e0fcb0c80ed9270b9502bc. 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/MXUM72200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a07c42a08500c7ec13ebb6365cf2c621883da8d630029a9824a314e1d6bec87. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:00:51Z), 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/MXUM72200435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac671d3f157025e1b0359a0e6e10df72fcb7f478e4c1fcaf7381bc12e2e7967. 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/MXUM72200997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c1967e1780d93d5dfc59322abcafd74fec0f670f5c0547968dcccb5e611d30. 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/MXUM72201412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1495efc6ad1d16909216bc7ce16204810c2b4eeca2afab2cac85789e607ea812. 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/MXUM72201399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf977a5e6e61880006215880eda3926c2fbb6e2876de6c32f5eaae1f3d2d80832. 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/MXUM72201410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6c79608cb14b25dbe7b0bd89acdee5662cd7ee9203088d4c178ba2fb3b7d7c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/MXUM72201406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c58cf0d31a71313b43c21fe1b127884065686dd3d61ef24cf6292712cedeb8. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/MXUM72201407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc90f245669bfb722ab07642a15ff72051d3a891ab2b577c74afc7d70f250f4f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:35Z), 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/MXUM72201411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc568426a84eef02f11dca140265f494e149caf8710dcac2cc7db74fcb24bda. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/MXUM71901960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5859ca5a0e84ee5daa4541dfb0dae03480d04789a367ae019823328b0e11db. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/MXUM72302067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f93f21a9666879dac1b7eb223ee1aa9355a0d2beec7ace6a4cb18b7560c1bf5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXUM72201807.
Culpable Soy Yo - En Vivo Desde El Rancho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462bd9e2d00e2eab1b6f653483ea03bfacd243883afa4afe573023e43e860723. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM2EJ1500811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf111d37c29c6b0d89b3ceda7cf4c1d09e6beb85889f657f64e6c1d6af7219e34. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM2EJ1500818.
¿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 956304 (2026-07-02T03:55:08Z), 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/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.