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 0xe903e68392f6219d9d5fdf958f1fbde4fbd4345ff10acf6e16fa0d9ea9ca218c. 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/a2d27e92-5bf0-4dd6-8744-d5e38ee77517.json and https://artists.proofprofile.net/proofs/artist/a2d27e92-5bf0-4dd6-8744-d5e38ee77517.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 0x11e5c068c51ec0d80ebce4b4d75190961200bb275d1adbef8a199ccf9d3ef6d7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6Q2065869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9a042bd9611dfeb1cc7b5f648ae4cc39452265cece10f6685a0abad80f883b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZK6Q2065870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20006a8466bacf78dae1b36c74843f6e33720faefe434e2b7a96935fd933308b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6Q2065872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9337b367874de44ee49adcd6bff708c6ccba5b56a2c6d988f7f7afa9307a601a. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZK6F2077928.
Polvo y Nada en Vivo Desde la Quinta Rehal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bea8f1a94c7974343f6204cd45cb458cb997f9522fe6a4a24fc6104e60d0f29. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6K2116451.
Corridos Y Canciones Con Bateria (En Vivo)
En Vivo Fiesta Privada, Vol. 2. (En vivo)
En Vivo Fiesta Privada, Vol. 3 (En vivo)
En Vivo Fiesta Privada, Vol. 1 (En vivo)
En Vivo desde Parral Chihuahua (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a41308e6474eb5dd63375174bf2f6a70a3aa7cd64b78484165e244f0dedf40e. 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/QZFZ32234095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63221e21d5983d83c3b4c8df3176c1cf695c5f3703a4ec9d28d7a09d5e43950. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:05:35Z), 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/QZHN42247572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3c321fce1e0e1e816b4522bbdc7bab2d6c43c21de893b2e96449938a4a3699. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:50:24Z), 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/QZHN42247573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a27be70f20438f1b5fa137b7a94995b176c136c099f886ca76898996e22d383. 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/QZHN42247574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20af17c7a27dd81293b2db9e87378744b01d912c8b415b3b9664ddada7006199. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZHN42247575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ebdd6c5aa8cb1f269a699af1849f0b405d0aeae02a80407000b04caeefdacd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHN42247579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350ddd6abe9c056103c9a25f14baa17436d310fc9f95e44d71113d8719b419e8. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:44:31Z), 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/QZHN42247583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211f96be00a8b094a32af91867dd57832dd4bcf7799909cb7d39e1d3c3c924be. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QZHN72233498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf536f25468a032fa8b2e350a79bef83fd1525eb37df9f5490b154e7fe5c5d025. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZMEP2209550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfbd182e63d3c3a3d9d16e41dd5726d8e738077edc69dfe53b7c4cf46d841ff. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZRP42219064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c355e9ec2da41681c56d3839067301be59fe4d2bd8666f96675c39f6fbea2a. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZDQH2399830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d41e8f684a31293b21417a48346d0a285c01a77ecb2486433ba0b6b00aae57. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:34:43Z), 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/QZDQH2502449.