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 0x52d5dfc96d3f1173766932540b77c94ae519c646774c932c61efd971db5f46ae. 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/fb8ddb78-e46e-4f12-a5f4-63e57c64e1a0.json and https://artists.proofprofile.net/proofs/artist/fb8ddb78-e46e-4f12-a5f4-63e57c64e1a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Big Running Hits 2021 (Fitness Version 160 Bpm)
Pumped Up Kicks (Fitness Version 160 Bpm)
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 0xb9ef8bba5ac06497da158e0511d385fcaa1f0a91938b41d0c241c238272e709f. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/ITC942103205.
Synergy For Fitness - Running Edition 2021 (Fitness Mixed Version 150 Bpm)
Ibiza Hard Running 2020 Session (Fitness Version 160 Bpm)
Gangsta'S Paradise (Fitness Version 160 Bpm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c28d63e6cf52dbe0b4ab1e8c292bce21915b09d14b9a888060218c02543c8ea. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITC942007039.
Don't Stop Me Now - Fitness Version 160 Bpm
600th!! The Super Anthology (Double Mixed Compilation 132 Bpm / 136 - 160 Bpm for Fitness & Workout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421c78fc191184f3071d393ad1f781e6217494f01d556e955809da9805a4c041. 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/ITC941925059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc0c2986a6122068fa8feaa21b96a3155235ff6abdf6ed62257a1938e104586. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITC941301162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0a053c6368f2160bbddc9a04d3362326d534b948439bf2935882618172fd7b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITC941001999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca448ca0142f6fc5444ac3ce546b533f104c2ab025913cbb03bae284f3754789. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ITC940500875.
The Platinum Collection Vol. 11 (Double Mixed Compilation 132 Bpm / 136 - 160 Bpm for Fitness & Workout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1095c4ccb6e57782317ec1ea0455f7666ab7471fe602ba951ee318a0c15c222. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/ITC941924968.
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