Mary Ann McCall
type: MusicGroup
genre: big band
genre: vocal jazz
description: Mary Ann McCall (May 4, 1919 – December 14, 1994) was an American pop and jazz singer. Aside from solo work, she sang for Charlie Barnet, Tommy Dorsey, Stan Kenton, Artie Shaw, Teddy Powell, and Woody
popularity: 4
followers: 162
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4630edd96f71d01279547b762a79b24682aadb8685eea3ae1bf808ac1fba2d2b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe0a87dc-ced5-4fc8-8cd0-39217582655e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe0a87dc-ced5-4fc8-8cd0-39217582655e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe0a87dc-ced5-4fc8-8cd0-39217582655e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4630edd96f71d01279547b762a79b24682aadb8685eea3ae1bf808ac1fba2d2b","name":"Mary Ann McCall","registered_at":"2026-06-21T17:52:17Z","symbol":"NIM1992743","token_address":"0x5c9de8a8413c07a02ffcd6d8b0b42a38b40cc32f","type":"artist","uuid":"fe0a87dc-ced5-4fc8-8cd0-39217582655e"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4630edd96f71d01279547b762a79b24682aadb8685eea3ae1bf808ac1fba2d2b. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe0a87dc-ced5-4fc8-8cd0-39217582655e.json and https://artists.proofprofile.net/proofs/artist/fe0a87dc-ced5-4fc8-8cd0-39217582655e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x4630edd96f71d01279547b762a79b24682aadb8685eea3ae1bf808ac1fba2d2b","name":"Mary Ann McCall","registered_at":"2026-06-21T17:52:17Z","symbol":"NIM1992743","token_address":"0x5c9de8a8413c07a02ffcd6d8b0b42a38b40cc32f","type":"artist","uuid":"fe0a87dc-ced5-4fc8-8cd0-39217582655e"}
album: Charlie Barnet & His Orchestra Vol 2
  type: MusicAlbum
  date published: 1940
album: Easy Living
  type: MusicAlbum
  date published: 1957-01-01
album: Melancholy Baby
  type: MusicAlbum
  date published: 2000-01-01
album: You're Mine, You: 1939-1950
  type: MusicAlbum
  date published: 2008-06-07
album: The Breeze and I (Remastered)
  type: MusicAlbum
  date published: 2020-06-15
album: Blue and Sentimental (Remastered)
  type: MusicAlbum
  date published: 2020-06-15
album: Blue Moon (Remastered)
  type: MusicAlbum
  date published: 2020-06-15
album: Best of the Best (Remastered)
  type: MusicAlbum
  date published: 2020-12-11
album: Top 50 Classics - The Very Best of Mary Ann McCall
  type: MusicAlbum
  date published: 2021-07-31