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 0xe94dcdbcf9511d5e9fe789cf9ac276681e840e5f13240da4aa82c2251b4c59be. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebeb5b4c-d024-4287-aa0b-338c4b4b5501.json and https://artists.proofprofile.net/proofs/artist/ebeb5b4c-d024-4287-aa0b-338c4b4b5501.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It's Beginning To Look a Lot Like Christmas
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 0xa852a16e56a76ffc86bbc3fed74a6aa45a5f39765caf1eeac0f4479ed8263b67. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZAKB2007038.
Swingin’ Through the Holidays - Christmas Jazz Favorites
A Jazzy Christmas - Instrumental Holiday Magic
North Pole Nights - Santa's Jazz Playlist
Christmas Time Is Here - A Christmas Holiday Jazz Collection
Let It Snow, This Christmas - The Ultimate Holiday Jazz Instrumentals
Traditional Christmas Jazz - Timeless Seasonal Sounds
Tis the Season of Love and Christmas Light - Holiday Jazz Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7512f95f07ccf76137fa684cbf4f5bf8295289ccee24b3860162c18ea0cd9f. 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/CAWK52487754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71662feebb8519d8633ae7f3f680c56d725c510dd1c9ea8d28a6d7bf2609c7a3. 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/CAWK52487756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9839d01e25b9eb24241777f654b8d3ba020338ab3f42b33559a659718fdf5673. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/CAWK52487759.