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 0xe37775b346ac3a4168791734a012115a06af09223502267b8ed8bdfa5b6a9133. 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/eeb1224c-10b4-4760-a923-c589f8dbaa99.json and https://artists.proofprofile.net/proofs/artist/eeb1224c-10b4-4760-a923-c589f8dbaa99.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 0xfdc17657b189f57822d7b7e5647b2c3b5f01cfd22242ae9ebd05ee70c4ff533a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:46:32Z), 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/QZFZ62137089.
Una Perra No Es Perra Una Perra Prospera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21150aea2a640e493fbc966e636828f0192dce4611f6c7c4f276a58700a9a8d7. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZMEN2193809.
A Mi No Me Gusta, A Mi Me Encanta El Perreo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ac71a84ba143bf6715fbc13d612275abc54efa0d7e1e16169a69b6d31d799b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:47Z), 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/QZTB62259236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58818703c0f3f945e646f477b28e416ad4c5e50fa7efca1ecc353ec02f0c946. 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/QZMEN2324035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb89d515583b01368996b0cd44715bfe88af8b05ef51bfbeee54cdc54dd5c48. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZRP42330457.
Quieres que te llene la carita de yakult
El juego del calamar 2 Agrupados (ALETEO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40a9ddc59e31724e3e099c01ef11f56189dfd2eb0a2a8fc6f55eec4bf8c7379. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFZ22520270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ccc861a87d0c00080787b57bdb16770c6480b9c2e99eeb5aff0f56ca4f2ee5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDA72512742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84af59de995f452e9b2603a5a71f898d0c8d8c5d5c6950da42e1fab0bd1131d. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:51:23Z), 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/QZK6N2554319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b272e0f549071c09a64339b6759944102571e3cb634db76c1c928c41d05333b. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:32:31Z), 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/QZZ7K2586456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e0d2d795e881341a3122ff141f51676db26f12688426a30fe6f0611d2cc3c8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QT3FH2511894.