Jo Ann Greer
type: MusicGroup
genre: big band
description: Katherine Joan Greer"New Jersey, Reclaim the Records, Geographic Birth Index, 1901-1929", FamilySearch (https://www.familysearch.org/ark:/61903/1:1:6N35-48NY : Mon Mar 11 00:28:14 UTC 2024), Entry for
popularity: 8
followers: 413
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6756da695d363141e0a43c744daf5b950df2c3558be58c0d559061f094961508
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36e49b64-afce-43f4-927f-f313ffaf35e1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36e49b64-afce-43f4-927f-f313ffaf35e1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/36e49b64-afce-43f4-927f-f313ffaf35e1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6756da695d363141e0a43c744daf5b950df2c3558be58c0d559061f094961508","name":"Jo Ann Greer","registered_at":"2026-06-16T08:39:19Z","symbol":"NIM0997403","token_address":"0x948374272061616b63f36c4d3c5b6e8080de0cc1","type":"artist","uuid":"36e49b64-afce-43f4-927f-f313ffaf35e1"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6756da695d363141e0a43c744daf5b950df2c3558be58c0d559061f094961508. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36e49b64-afce-43f4-927f-f313ffaf35e1.json and https://artists.proofprofile.net/proofs/artist/36e49b64-afce-43f4-927f-f313ffaf35e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0x6756da695d363141e0a43c744daf5b950df2c3558be58c0d559061f094961508","name":"Jo Ann Greer","registered_at":"2026-06-16T08:39:19Z","symbol":"NIM0997403","token_address":"0x948374272061616b63f36c4d3c5b6e8080de0cc1","type":"artist","uuid":"36e49b64-afce-43f4-927f-f313ffaf35e1"}
album: Hollywood's Secret Singing Star
  type: MusicAlbum
  date published: 2012-10-12
album: Hollywood Legend Sings
  type: MusicAlbum
  date published: 2013-06-29
album: Wild Horses (28 Hits and Rare Songs)
  type: MusicAlbum
  date published: 2014-09-05
album: Ancient History
  type: MusicAlbum
  date published: 2014-10-11
album: No Moon at All
  type: MusicAlbum
  date published: 2014-10-16
album: No Moon at All
  type: MusicAlbum
  date published: 2017
album: Ancient History
  type: MusicAlbum
  date published: 2019-04-01
album: Golden Selection (Remastered)
  type: MusicAlbum
  date published: 2020-10-09
album: More Jo Ann Greer
  type: MusicAlbum
  date published: 2022-01-06
album: Singles
  type: MusicAlbum
  date published: 2022-01-06