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 0x1d5b0f0b57c208a94c589aecc13b5a56eeabb3d10df5cd9b9ea4f11a223d0856. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dee9944d-d228-4d8c-88b3-fd5bedc914ac.json and https://artists.proofprofile.net/proofs/artist/dee9944d-d228-4d8c-88b3-fd5bedc914ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956653218f7c2081b22f870ff6ab430728efb855c9035a9ed865e8ea86b90c4e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5BMgNaBfhgF06ArFhcUnjK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5BMgNaBfhgF06ArFhcUnjK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4176c078c2e7752a6c9befb0526ed565c24cc867818ce2317d7b3142e111508. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1I2kEnvtrEMZ7opqgqODS1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1I2kEnvtrEMZ7opqgqODS1.
All the Things You Are - 2003 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4176c078c2e7752a6c9befb0526ed565c24cc867818ce2317d7b3142e111508. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5aLhP49eqHj32ifAwCrwuU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5aLhP49eqHj32ifAwCrwuU.
Then I'll Be Tired Of You - 2001 Remastered
Blight of the Fumble Bee - 2003 Remastered
I've Got You Under My Skin - (2001 Remastered) [Take 9]
The Way You Look Tonight - 2003 Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0964da5bc9fdc14302958bb06238e687c41107e58923451792aaad088f1736ae. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kSzx4kqxTa4Ew8ezQWUSq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kSzx4kqxTa4Ew8ezQWUSq.
Like Someone In Love - (2001 Remastered) [Take 8]
Ill Wind (You're Blowin' Me No Good) - 2001 Remastered
All the Things You Are - Alternate Take - 2003 Remastered
The Night Has a Thousand Eyes - Alternate Take
The Way You Look Tonight - Alternative Re-Make Version - 2003 Remastered
Polka Dots and Moonbeams - Alternate Take
Untitled Blues Waltz - (2003 Remastered) [Take 1]
Imagination - (2001 Remastered) [Take 3]
Untitled Blues Waltz - (2003 Remastered) [Take 2]
Advise and Consent (From "Advise and Consent") - (Remastered) [Take 8]
Autumn Leaves - (2001 Remastered) [Take 1]
Autumn Leaves - (2001 Remastered) [Take 3]
Imagination - (2001 Remastered) [Take 4]
Advise and Consent - (Remastered) [Take 4]
The 59th Street Bridge Song (Feelin' Groovy)
From The Hot Afternoon (Expanded Edition)
Gira Girou (Round n' Round) - Alternate Take
Canto Latino (Latin Chant) - Alternate Take
From The Hot Afternoon - Alternate Take 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c37556ec7cc5b66be7e191a529396fc7d730ec19079f963b352694dd6f8acd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2sGI7Z5yexfJxVv2HN0Hc4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2sGI7Z5yexfJxVv2HN0Hc4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a03329ee44295b6e79802d3949cdfc875410272eea2bdfd7401df583d284179. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0EPLDMdeYjK7WHMc7Xzien.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0EPLDMdeYjK7WHMc7Xzien.
{"copyright_id":"0x3be9489bb13622cafb59115284dd41b7644d2f54ddae13b2da8c2fc4c255b419","isrc":"USGR10500252","name":"Scarborough Fair / Canticle","registered_at":"2026-06-29T19:55:57Z","spotify_id":"6ClHLpmyWp4zY2aCDh110j","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be9489bb13622cafb59115284dd41b7644d2f54ddae13b2da8c2fc4c255b419. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ClHLpmyWp4zY2aCDh110j.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6ClHLpmyWp4zY2aCDh110j.
Pure Desmond (CTI Records 40th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928885f0b84f5b1c53136947a7dec02285750e3c724887fd546acf64568fcd5c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6szB4qVbrBpPRx3bDJh4Mo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6szB4qVbrBpPRx3bDJh4Mo.
{"copyright_id":"0xa5e23b27c41fa540f0fd77da0840b8ed945bde6cc161bcb8d68dd9b011b2110c","isrc":"USSM10025573","name":"Song to a Seagull","registered_at":"2026-06-28T20:17:00Z","spotify_id":"2u1iCzhM32hEpbI8xnqB42","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e23b27c41fa540f0fd77da0840b8ed945bde6cc161bcb8d68dd9b011b2110c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2u1iCzhM32hEpbI8xnqB42.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2u1iCzhM32hEpbI8xnqB42.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357400ae8a0330278a282e15ef45737876da0ed7942d81c0d8088e35f882b7d9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Y5P1MZ6nuBZavzcoaXVPN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Y5P1MZ6nuBZavzcoaXVPN.
{"copyright_id":"0xe070665b0b5d2d29e5080067aeb7c3b76dbb6db75e7e648b741db00ddbb96e89","isrc":"USBB16100836","name":"Desmond Blue","registered_at":"2026-06-05T16:31:30Z","spotify_id":"6dlZD2PctPnYU3sMRGGQfv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe070665b0b5d2d29e5080067aeb7c3b76dbb6db75e7e648b741db00ddbb96e89. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6dlZD2PctPnYU3sMRGGQfv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dlZD2PctPnYU3sMRGGQfv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b67571f902148337d3799135b6e083c77f5c63d15c43f1f7e5708d75ea16d37. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Hryf1vEER3VmVbKnqJ4WK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Hryf1vEER3VmVbKnqJ4WK.
Like Someone In Love (Live At The Bourbon Street Jazz Club, Toronto, Canada / March 29, 1975)
Just Squeeze Me - Live At The Bourbon Street Jazz Club, Toronto, Canada / March 29, 1975
Tangerine - Live At The Bourbon Street Jazz Club, Toronto, Canada / March 29, 1975
Meditation - Live At The Bourbon Street Jazz Club, Toronto, Canada / March 29, 1975
Nuages - Live At The Bourbon Street Jazz Club, Toronto, Canada / March 29, 1975
Like Someone In Love - Live At The Bourbon Street Jazz Club, Toronto, Canada / March 29, 1975
Things Ain't What They Used To Be - Live At The Bourbon Street Jazz Club, Toronto, Canada / March 29, 1975
The Way You Look Tonight - alternate take
All the Things You Are - Remastered 1996
Blight of the Fumble Bee - Remastered 1996
The Way You Look tonight - Remastered 1996
{"copyright_id":"0xe070665b0b5d2d29e5080067aeb7c3b76dbb6db75e7e648b741db00ddbb96e89","isrc":"USBB16100836","name":"Desmond Blue","registered_at":"2026-06-05T16:31:30Z","spotify_id":"4qgnLKdVP8gtB6H23qcWcM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe070665b0b5d2d29e5080067aeb7c3b76dbb6db75e7e648b741db00ddbb96e89. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4qgnLKdVP8gtB6H23qcWcM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4qgnLKdVP8gtB6H23qcWcM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4176c078c2e7752a6c9befb0526ed565c24cc867818ce2317d7b3142e111508. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5oaVK7THnT8cr8v4cdiZjh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5oaVK7THnT8cr8v4cdiZjh.
Canto Latino (Latin Chant) - alternative take
Paul Desmond: The Best of the Complete RCA Victor Recordings
Desmond Blue (Bluebird First Editions Series)
Complete Jazz At Storyville (with Dave Brubeck)
Then I'll Be Tired of You - 2011 Remaster
I've Got You Under My Skin - 2011 Remaster
Advise and Consent (From "Advise and Consent") - 2011 Remaster
I've Got You Under My Skin - 2001 Remastered - Take 9
Like Someone In Love - 2001 Remastered - Take 8
Advise and Consent (From "Advise and Consent") - 2001 Remastered - Take 4
Autumn Leaves - 2001 Remastered - Take 1
Autumn Leaves - 2001 Remastered - Take 3
The One I Love (Belongs to Somebody Else)
Complete Recordings (Bonus Track Version)
I’ve Got You Under My Skin (Bonus Track)
Give a Little Whistle / Oh, Lady Be Good
Advise and Consent (From "Advise and Consent")
Autumn Leaves, Pt. 1 - Previously Unreleased Alternate Takes
Autumn Leaves, Pt. 2 - Previously Unreleased Alternate Takes
Imagination - Previously Unreleased Alternate Takes
Advise and Consent - Previously Unreleased Alternate Takes
First Place Again (with Jim Hall) [Bonus Track Version]
Manha De Carnaval - Theme from "Black Orpheus"
The One I Love - Belongs to Somebody Else
Polka Dots and Moonbeams (Alternate Take)
The 59Th Street Bridge Song (Feelin' Groovy)
All That Jazz, Vol. 85: Plain Saxophone – Paul Desmond & Friends, Feat. Dave Brubeck (Remastered 2017)
Milestones of a Jazz Legend - Paul Desmond, Vol. 2
Milestones of a Jazz Legend - Paul Desmond, Vol. 3
Milestones of a Jazz Legend - Paul Desmond, Vol. 6
Milestones of a Jazz Legend - Paul Desmond, Vol. 9
Milestones of a Jazz Legend - Paul Desmond, Vol. 1
Milestones of a Jazz Legend - Paul Desmond, Vol. 5
Milestones of a Jazz Legend - Paul Desmond, Vol. 8
Milestones of a Jazz Legend - Paul Desmond, Vol. 7
Milestones of a Jazz Legend - Jim Hall on Guitar Vol. 7
FIP, Vol. 3 : La playlist qui rythme votre vie (La sélection musicale de FIP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956653218f7c2081b22f870ff6ab430728efb855c9035a9ed865e8ea86b90c4e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/13wyDPTrq0Q78uNF1lLp0d.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/13wyDPTrq0Q78uNF1lLp0d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160bb3d73f58c6796c9135f03bd1bb340ed88ea0a86e88853718f4334074028b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5UMb3v7N65qkSNZVxtIaAI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5UMb3v7N65qkSNZVxtIaAI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163014ec9e0a25855dda20d6e8b9f0c9e6e83d24333a5f200638b9a9a05d97e5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2T99QphoCsexqtql4AKTeX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2T99QphoCsexqtql4AKTeX.
{"copyright_id":"0x1bd66d0dbb13e74fff576f84971b8038f676b63703a8d44a789dff6fd6da42b1","isrc":"USFI85500293","name":"You Go To My Head","registered_at":"2026-06-29T06:07:00Z","spotify_id":"0ZtUMstsPuShjYLHlm2Nf5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd66d0dbb13e74fff576f84971b8038f676b63703a8d44a789dff6fd6da42b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ZtUMstsPuShjYLHlm2Nf5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ZtUMstsPuShjYLHlm2Nf5.
For All We Know - Live At The College Of The Pacific / 1953
Take 5 (Arranged for horns by Calvin Custer and Phil Myers)
Take 9 - Music for Horns: Bernstein, Brahms, Gershwin and More