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 0x7c07a6871b6ef9de8f3dbf13160d820d2e3568bf18d56c8b6e238b5e346a7599. 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/34886579-5aaf-4231-9750-a60e2a3b794c.json and https://artists.proofprofile.net/proofs/artist/34886579-5aaf-4231-9750-a60e2a3b794c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Another Lonely Christmas Night (Remastered)
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 0x497b583445b3dfab8fb9a66344332d584fcba667b844c57983e2e85cf6254e79. 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/30FpeLjYR5Zfrr6zYlurSX.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/30FpeLjYR5Zfrr6zYlurSX.
My Name Is John Welligton Wells (from 'The Sorcerer')
I Am The Very Model! (from 'The Pirates Of Penzance')
Am I Alone, And Unobserved / If You're Anxious For To Shine (from 'Patience')
When I Went To The Bar / Love Unrequited Robs Me Of My Rest (from 'Iolanthe')
I Know A Youth / My Boy, You Can Take It From Me (from 'Ruddigore')
I've Jibe And Joke / Oh! A Private Buffoon (from 'The Yeomen Of The Guard')
Rising Early In The Morning (from 'The Gondoliers')
Myself When Young (from 'In A Persian Garden')
Come Away Death, Op.6 No.1 / O Mistress Mine, Op. 6 No. 2 / Blow, Blow Thou Winter Wind, Op. 6 No. 3 (from 'Shakespeare Songs')
How Doth The Little Crocodile / Fury Said To A Mouse / 'Tis The Voice Of The Lobster / They Told Me You Had Been To Her / You Are Old, Father William / Speak Roughly To Your Little Boy / Will You Walk A Little Faster (from 'Alice In Wonderland')
Isn't It Funny / How Sweet To Be A Cloud / It's Very Very Funny / Cottleston Pie / Lines Written By A Bear / Sing Ho! For The Life Of A Bear (from 'The Hums Of Pooh')
In The Shade Of The Palm (from 'Florodora')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de2754a59f858595a603dfc8a4dd02453534b12b6251f059dcced3e6613b898. 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/5MXNd0dJL7KYtIJ8hTW8Ow.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/5MXNd0dJL7KYtIJ8hTW8Ow.
Und diese Rosen sind für Dich, liebe Mamatschi
Am I Alone, And Unobserved; If You're Anxious For To Shine (from 'Patience')
(a) When I Went To The Bar; (b) Love Unrequited Robs Me Of My Rest (from 'Iolanthe')
(a) I Know A Youth (b) My Boy, You Can Take It From Me (from 'Ruddigore')
(a) I've Jibe And Joke (b) Oh! A Private Buffoon (from 'The Yeomen Of The Guard')
(a) Come Away Death, Op.6 No.1 (b) O Mistress Mine, Op.6 No.2 (c) Blow, Blow Thou Winter Wind, Op.6 No.3 (from 'Shakespeare Songs')
How Doth The Little Crocodile - Fury Said To A Mouse - 'Tis The Voice Of The Lobster - They Told Me You Had Been To Her - You Are Old, Father William - Speak Roughly To Your Little Boy - Will You Walk
Isn't It Funny - How Sweet To Be A Cloud - It's Very Very Funny - Cottleston Pie - Lines Written By A Bear - Sing Ho! For The Life Of A Bear (from 'The Hums Of Pooh')
The Great Glad Tidings Tell, Carols from Copley Square
Het Beste van de Beste Zangers van Nederland (Deel 2)