Greta Gertler
type: MusicGroup
description: Greta Gertler is a pianist, singer, and songwriter. She was Born in Boston, Massachusetts and grew up in Sydney, Australia, and got her start there as a songwriter, performing and penning hits for ot
popularity: 36
followers: 236
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97a315b1e7174a3645868558dd51022c04daf29adbef8bea56ab1382aec129a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33546e6b-6d01-416e-80ab-4b13ddf68697.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33546e6b-6d01-416e-80ab-4b13ddf68697.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/33546e6b-6d01-416e-80ab-4b13ddf68697
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97a315b1e7174a3645868558dd51022c04daf29adbef8bea56ab1382aec129a5","name":"Greta Gertler","registered_at":"2026-06-11T15:44:18Z","symbol":"NIM0067330","token_address":"0x061300310b7f050042dc30f30d58c6a641fcc865","type":"artist","uuid":"33546e6b-6d01-416e-80ab-4b13ddf68697"}
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 0x97a315b1e7174a3645868558dd51022c04daf29adbef8bea56ab1382aec129a5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33546e6b-6d01-416e-80ab-4b13ddf68697.json and https://artists.proofprofile.net/proofs/artist/33546e6b-6d01-416e-80ab-4b13ddf68697.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x97a315b1e7174a3645868558dd51022c04daf29adbef8bea56ab1382aec129a5","name":"Greta Gertler","registered_at":"2026-06-11T15:44:18Z","symbol":"NIM0067330","token_address":"0x061300310b7f050042dc30f30d58c6a641fcc865","type":"artist","uuid":"33546e6b-6d01-416e-80ab-4b13ddf68697"}
album: The Baby That Brought Bad Weather
  type: MusicAlbum
  date published: 2003-03-15
album: Nervous Breakthroughs
  type: MusicAlbum
  date published: 2004-11-16