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 0x9522ca11ca87dff48b8f567ea93a09dc46716adda91d3f8ae89d1ac4c20da7fa. 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/1cbad37b-4e9f-4492-87cc-35a0d64589df.json and https://artists.proofprofile.net/proofs/artist/1cbad37b-4e9f-4492-87cc-35a0d64589df.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 0xf99c6f219d9b15de4126f8ad3d445c8809bb7e530e429e27bcfb93c217f74b92. 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/USUM71917835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d803bcb13f6f480a958b1f11c6bcfc02e67d10b3be61a6132b07195f2ba2306. 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/USUM72100566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ad1d55cb40ac275a01415dd9808533a58acad04d448c00623aa2d115686d81. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUM72115373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabfdd337edd2ff495f6b2a083f9fd9c2d831226c09a2a3c1374c200a1929a98. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USUM72118656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b30765b8a20dd35d3a26db466f28efcc5a25e56afd63fe82d1347ec8364bc06. 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/USUM72204061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d409c822eeeb6ec616399be555fef73cc5933076a71021c50712e4e5e9c62e. 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/USUM72204515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571d71e53ba2fb4aaf38e3ebb3ec614ae80acbf32c6d9f8e399ae875b443da52. 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/USUM72204516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db5c70c15bb72cee9273a4f245ec740b14c96cbfec6ed146bd64cf2e39e67c7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USUM72211197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db5c70c15bb72cee9273a4f245ec740b14c96cbfec6ed146bd64cf2e39e67c7. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USUM72211197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaef80b402cedbe75f473a47cbb470c4ee2b1636d4837ac1c75b38bb5c177dfe. 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/USA2P2307585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f9faa228d9e0ca08bae8a33a99311060dca0c5e6bc7e188023b12664b4fdc1. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USA2P2307600.
Desde La Capital Del Corrido, Vol. 1 (En Vivo)
Tolín Infante (Bélico El Asunto) (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb102be54b61f2d671a3edaabce7459b4a0a42fc6d3d6574a13aa437cecc546af. 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/USA2P2314995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabde3893973ecb6e21a90b4773efa8e514092a918e35fde71fc7f5955d752adc. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USA2P2332226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe703c44a4c701997e2f6a57589acabcf004682d6d4062d11d0a186fb9aacbac8. 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/USA2P2351064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d07d64c373ecbfbaef84c33120d1a714987604f9e004ed2675c36df22bea99. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USA2P2355454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b0c8cae5874203d6096329fbd4d88c964f64e78bd2ac4223867c5aa2df64e2. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/USA2P2412629.
Desde La Capital Del Corrido, Vol. 2 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060816038c8e5072132f2afbff342715160d84b44f9f04f07418ac8062cf8f0e. 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/USA2P2437896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fb6e098487944b946e18c007618574b02e07eec769a9781b3244313e9a6547. 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/USA2P2460652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0add2a0ecc9856e463628776ce927ea31d566c2a3754ef7ae9e86c8c243bb859. 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/USA2P2464442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeac15f9325e551cbdd9b31f025745eaade70196580ca1e9c87891607eb5a5e9. 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/USA2P2505093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aad0a643a045639f0673510f925c5033e929eaf7724db941b827ee939b5790. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUM72500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c60af17c8f6b9baf9b60956db02504f6d67671277b98c80fdb6e1a9c7c4cc3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USUM72500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aad0a643a045639f0673510f925c5033e929eaf7724db941b827ee939b5790. 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/USUM72500111.
From La Finikera (From “American Song Contest”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d409c822eeeb6ec616399be555fef73cc5933076a71021c50712e4e5e9c62e. 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/USUM72204515.