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 0xb97c5ad4f2704cb46d4cef6a8083f5db3ce0df098ac94d6e6626f6ed332786b2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07f62f1b-4951-47fa-81cd-c513d31b5c23.json and https://artists.proofprofile.net/proofs/artist/07f62f1b-4951-47fa-81cd-c513d31b5c23.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 0x02c71653e1bfaa28f52a8161ffaa18768feeba67f6e3cb549c8f44d5c4055ece. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:26:39Z), 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/QZWFE2564786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61daf3b21573e1d0b907f273ceaef88f1b2705baf1310f681a83fd9c752020a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:03:03Z), 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/QZWFE2559891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcdc4c6e66207c297de55ded14e419102a64d7a683dae64ecb423d54571a4fc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZZ7W2507326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738f692dbb327024992f7b68e99251689b70c87e01bebef3c4727e92b7d13a38. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:52:43Z), 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/QZZ7V2593983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5071c8e67b8f52af646457c7417758bbb5844569e18c33f64db509e0dc68885. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZWFE2564784.
El chisquiado v1 (maldito y bendito vol 2)
La cumbia del tartas (maldito y bendito vol 2)
El ahijado de oro (maldito y bendito vol 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f02ba260d9c3db2ab304b38a9bf8d5afdc78c1d7bca2ca3ea6b8096d96a82f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZTBF2593468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc098c3b0bb378f7cebc05dc201f408c0a9caad5504e35bc4d3b1c92dc8ab9de. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZWFH2577718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab24b511a5837b4c81ffa5c98ce53b3e24eeb28b8ca0d36b283d69f59933370. 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/QT3EX2531634.
El mal portado / El Exclusivo & Conrriquez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2723609b8f9b78782f70dbef258ec39839162e193c560b35acd2e724ace4f562. 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/QT3F52526617.