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 0xe456541bb91f4294ec5565b58be183c99876e21e97d217d3124e2d98b9d54965. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6b74a01-1d4e-40eb-8bf6-4c7c013c29ac.json and https://artists.proofprofile.net/proofs/artist/b6b74a01-1d4e-40eb-8bf6-4c7c013c29ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
...Then Along Came Bill: A Tribute To Bill Evans
Then I'll Be Tired of You - from "Sylvia Sings"
I Don't Want to Cry Anymore - from "Sylvia Sings"
Honey in the Honeycomb - from "Sylvia Sings"
A Woman's Intuition - from "Sylvia Sings"
We Just Couldn't Say Goodbye - from "Sylvia Sings"
I'm So Happy I Could Cry - from "Sylvia Sings"
He Loves and She Loves - from "Songs of Love"
Can't We Be Friends - from "Songs of Love"
Hands Across the Table - from "Songs of Love"
Isn't It Romantic - from "Songs of Love"
Dancing in the Dark - from "Songs of Love"
When a Woman Loves a Man - from "Songs of Love"
What's the Use of Won,drin' - from "Songs of Love"
Don't Ever Leave Me - from "Songs of Love"
I'll Be Seeing You - from "Songs of Love"
Down in the Depths on the Nineteenth Floor
Down In The Depths On The Nineteenth Floor
Then I'll Be Tired Of You - From Sylvia Sings
Honey In The Honeycomb - From Sylvia Sings
Dancing In The Dark - From Songs Of Love
We Just Couldn't Say Goodbye - From Sylvia Sings
Can't We Be Friends - From Songs Of Love
Hands Across The Table - From Songs Of Love
Don't Ever Leave Me - From Songs Of Love
He Loves And She Loves - From Songs Of Love
What's The Use Of Won Drin' - From Songs Of Love
I'm So Happy I Could Cry - From Sylvia Sings
When A Woman Loves A Man - From Songs Of Love
I Don't Want To Cry Anymore - From Sylvia Sings
I Don't Want to Cry Anymore - Remastered
We Just Couldn't Say Goodbye - Remastered
What's the Use of Won'drin' - Remastered
The World In My Corner - From the film The World In My Corner 45t
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 0x2d11c96fd29028ce317b3823af7499ea8f93d3368fd369bdb5ef26fbb7f1a36d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR8X02400210.