Ruth Rubin
type: MusicGroup
description: Ruth Rubin (September 1, 1906 – June 11, 2000) was a Canadian-American folklorist, singer, poet, and scholar of Yiddish culture and music. Early life Born Rivke Rosenblatt in 1906 in Khotin, Bessarab
popularity: 2
followers: 260
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab2aafc9f14b11dd8ab0868746181443f0d0e58c249b912538909bb63e9e83c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954032
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954032
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3be6141c-d06b-4d3b-96f6-495637bd3a3a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3be6141c-d06b-4d3b-96f6-495637bd3a3a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3be6141c-d06b-4d3b-96f6-495637bd3a3a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:59:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xab2aafc9f14b11dd8ab0868746181443f0d0e58c249b912538909bb63e9e83c3","name":"Ruth Rubin","registered_at":"2026-06-16T10:24:04Z","symbol":"NIM1022402","token_address":"0x4a1f92a3a42b0e687dd5611a3094e921fd12274d","type":"artist","uuid":"3be6141c-d06b-4d3b-96f6-495637bd3a3a"}
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 0xab2aafc9f14b11dd8ab0868746181443f0d0e58c249b912538909bb63e9e83c3. Chain 2 (Bitcoin): anchored in block 954032 (2026-06-17T01:59:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3be6141c-d06b-4d3b-96f6-495637bd3a3a.json and https://artists.proofprofile.net/proofs/artist/3be6141c-d06b-4d3b-96f6-495637bd3a3a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T01:59:41Z
  text: {"copyright_id":"0xab2aafc9f14b11dd8ab0868746181443f0d0e58c249b912538909bb63e9e83c3","name":"Ruth Rubin","registered_at":"2026-06-16T10:24:04Z","symbol":"NIM1022402","token_address":"0x4a1f92a3a42b0e687dd5611a3094e921fd12274d","type":"artist","uuid":"3be6141c-d06b-4d3b-96f6-495637bd3a3a"}
album: Jewish Folk Songs
  type: MusicAlbum
  date published: 1959-01-01
album: Yiddish Folk Songs
  type: MusicAlbum
  date published: 1978-01-01
album: Tants, Tants Antkegn Mir
  type: MusicAlbum
  date published: 2012-05-30