1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x97e6ed7ce4ccbe9019cba83b412d6d4ac2d9b89ff1506da0731f9fe0a55c304c. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11a7025c-b371-4ba0-a4b8-611147375b7e.json and https://artists.proofprofile.net/proofs/artist/11a7025c-b371-4ba0-a4b8-611147375b7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Such a Beautiful Sound: Joe Wilder and Pete Brown's Sextet
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 → block OTSBitcoinBlock must exist at that height 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 0xe9bed5a801901e518500ba0c49ac3058bdce79e0ca18305f31b8772a8aac3b4e. 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/NLHR52116011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1af666c5cd4a4aa55f74736eaa6caa3e126d3ffc26d216adafba8192b1e6f4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLHR52116012.
If I Could Be with You One Hour To-Night
The Kingdom of Swing and the Republic of Oop Bob Sh'bam
Lester Leaps In - Live at the 92nd Street Y, New York City
On Green Dolphin Street - Live at the 92nd Street Y, New York City
Blue Creek - Live at the 92nd Street Y, New York City
You'd Be So Nice to Come Home To - Live at the 92nd Street Y, New York City
When Your Lover Has Gone - Live at the 92nd Street Y, New York City
Night in Tunisia - Live at the 92nd Street Y, New York City
Joshua Fit the Battle of Jericho - Live at the 92nd Street Y, New York City
Motens Swing - Live at the 92nd Street Y, New York City
Milestones of Jazz Legends - Male Jazz Singers, Vol. 10 (1959-1960)
It's a Fine Day for Walkin' Country Style
I Wonder What Became Of Me (From "St. Louis Woman")
Like a Straw in the Wind (feat. Joe Wilder)
Down with Love (From "Hooray for What?")
Happiness Is a Thing Called Joe (From "Cabin in the Sky") [feat. Joe Wilder]
A Woman's Prerogative (From "St. Louis Woman")
Come Rain or Come Shine (From "St. Louis Woman")
Little Drops of Rain (From "Gay Purr-ee") / Over the Rainbow ["From "The Wizard of Oz"]
When the Sun Comes Out (feat. Joe Wilder)
As Long as I Live (From "Cotton Club Parade")
My Shining Hour (From "The Sky's the Limit") [feat. Joe Wilder]