Una Winifred Atwell (27 February or 27 April 1910 or 1914There is some uncertainty over her date and year of birth. Many sources suggest 27 February 1914, but there is a strong suggestion that her bir
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b04e54d5716eced5edd82c719dde18159cf78bd4388187b484362ef5173809a. 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/61d133ef-dfb5-461b-b872-9ef435fd0897.json and https://artists.proofprofile.net/proofs/artist/61d133ef-dfb5-461b-b872-9ef435fd0897.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Winifred Atwell et ses pianos (Mono Version)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a69e79d2e9e67c81065ea62e11ce9cfc7268316bd32d00807b5b95d5b62575. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:54:01Z), 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/DEXN82256722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2960202cc11f98365d70bdc6c53ff77176216a40c7a39447ebf7876d81407c0. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEXN82256723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec37cfbf515ef5792ec58bd9602282d90f5f94404cfb4d67b7f3bfc61a656f69. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEXN82256767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d9d6dc1123410ed22dc6693d25a7205086d82ca167e3b74b7c08fa0da9bb9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:03:51Z), 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/DEXN82256769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2e5495fa7ca0dd37feb0ed9fbe492789496de138b9d4d06fdb35771b248549. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEXN82256771.
Winifred Atwell Plays Gershwin, No. 1 (Mono Version)
Streets of Sorrento / The Hope Waltz (feat. Cyril Stapleton and His Orchestra) [Mono Version]
Double 7: Seven Rag, Seven Boogie (Mono Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe893583b366b184b3d261c37c001d429a6d4afc6ad2d1bf2a656dffa1a6581. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:22:55Z), 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/GBLGL0980267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955aad25974759ace982f4a6833166c2da7dcc73ca50a64f685aeb75b495433a. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/GBSUW0726682.
Timeless Voices: Winifred Atwell, Vol. 1
Nostalgic Memories-The Very Best Of Winifred Atwell-Vol. 162
Winifred Atwell - Let's Have Another Party
Singled Out, Number One Series - Poor People Of Paris
Rag Mama Rag - The Magic of Winifred Atwell
Rachmaninoff's 18th Variation on a Theme by Paganini (The Story of Three Loves)
Top 50 Classics - The Very Best of Winifred Atwell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf429d4de37ba6d9b4ba81854b040b727601a824c38b4c93ff0fd7b6079018b1d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:05:33Z), 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/BGA261854203.
Les idoles du piano : Winifred Atwell, Vol. 1
Kitten on the Keys - The Piano of Winifred Atwell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9428824039f13998efed13c9cf6907470d97a9f0f059a1fc783eb0bfc3843402. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUXN22148213.
Two of a Kind: Winifred Atwell & Boogie Woogie Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e448d5fff52d4c31b8a7b05372fef6bc3182205ded2d067682e773e32af4e9. 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/AUXN22307757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e69c6d19d712d6a9b5e8acfcfa8bc20b0f0df8ffa491abf2177d5ee1f59e09. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/AUXN22307749.
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 0x35132eddb5fde2a5115d692e8ba6e38965621968427b10719fe7b0500ce45db2. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/AUXN22307750.
The Golden Age of Light Music: The Show Goes On
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b71444f6904d1a673b6d19ef236e5cc217cac5c7f67eb70a2e6d7c1098faef9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH6630854906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7ab2c688cb525e67e1300c22c359915454856fb5b70bb22f2c5a268d354e47. 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/GBF075100160.
All Star Hit Parade: Out of Town / My September Love / Theme from the Threepenny Opera / No Other Love / A Tear Fell
Deluxe: The Greatest Hits, Vol. 2 – 1956
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53d00741917713bb7b0dcd7efda9147a852e3f34c564c0d7dbd7ac24f89727d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRM031305780.
Classic ABC TV and Radio Themes from the 1940s to the 2000s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b20d041196e8dae306cbc54bee2ef567cf9020d42ce7f95fd3df522c2f34dd2. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/AUAB01450421.