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 0x4a3b63a0875aceef755386ac3c1841a1f318885ef891151f5bb1c33f0f6ad0d1. 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/44219693-9a38-4545-b1f3-238255f41447.json and https://artists.proofprofile.net/proofs/artist/44219693-9a38-4545-b1f3-238255f41447.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Latin Anthems 2021 For Fitness & Workout (Fitness Version 128 Bpm / 32 Count)
Agua (Fitness Version 128 Bpm / 32 Count)
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 0x2592ebee2f9e74b27646e75a7746194336016f8e672e0e36b9dd431aa6ee437a. 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/ITC942109344.
El Bano (Fitness Version 128 Bpm / 32 Count)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b54c7ac8b9733c68ca68e1cee563d60e509365f25a7714521de99192b55061. 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/ITC942109348.
Mamacita (Fitness Version 128 Bpm / 32 Count)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859aea96b12fe86110e5c95133ea9659dbfc591d364fa43ea852f1fa33d9fe5c. 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/ITC942109349.
Con Calma (Fitness Version 128 Bpm / 32 Count)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff603c9c4c4b073abb70dc981f87f2d0924610686d0ef2bdce3e2e2eaf215a8b. 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/ITC942109350.
Ultra Aqua Gym Latin Hits 2020 Workout Compilation (Fitness Version 128 Bpm / 32 Count)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbe3ad728e7bde0dc3546481e532e972a50e7aaf7524487014627e3ad3424b3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ITC941601986.
Viva La Summer 2019 (Mixed Compilation For Fitness & Workout 128 - 140 Bpm / 32 Count)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6b9336616a5879266c5823c15a45542526357863a0fb37a3384643a4a50498. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ITC941924583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbd50ddbc07718c2188c929924fb0c401c8c95d448b173d095aed853c545bca. 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/ITC941924585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf06eb7793fa3acee8aac98302d552915b286f121ebe90b5856ef63d46a899bc. 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/ITC941924586.
Viva La Summer 2018 (Mixed Compilation For Fitness & Workout 130 - 145 Bpm / 32 Count)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835128cce7b0d27bba6f32cb364e71bcd5c56be66ac8279cef376a7c77361d8c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ITC941924188.