שמואל גריינימן
type: MusicGroup
popularity: 7
followers: 245
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0f8e02e2f6ae2aff441c280d51536525e2f91dfc9e26a459c296de5e6340063
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7c6897f-2650-4a25-ad9f-58f48bdab391.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7c6897f-2650-4a25-ad9f-58f48bdab391.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e7c6897f-2650-4a25-ad9f-58f48bdab391
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd0f8e02e2f6ae2aff441c280d51536525e2f91dfc9e26a459c296de5e6340063","name":"שמואל גריינימן","registered_at":"2026-06-21T09:24:39Z","symbol":"NIM1883892","token_address":"0xce4ddd30c7791321e95db90376f2100bf2014887","type":"artist","uuid":"e7c6897f-2650-4a25-ad9f-58f48bdab391"}
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 0xd0f8e02e2f6ae2aff441c280d51536525e2f91dfc9e26a459c296de5e6340063. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7c6897f-2650-4a25-ad9f-58f48bdab391.json and https://artists.proofprofile.net/proofs/artist/e7c6897f-2650-4a25-ad9f-58f48bdab391.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xd0f8e02e2f6ae2aff441c280d51536525e2f91dfc9e26a459c296de5e6340063","name":"שמואל גריינימן","registered_at":"2026-06-21T09:24:39Z","symbol":"NIM1883892","token_address":"0xce4ddd30c7791321e95db90376f2100bf2014887","type":"artist","uuid":"e7c6897f-2650-4a25-ad9f-58f48bdab391"}
album: רגעי התעלות בן תורה
  type: MusicAlbum
  date published: 2021-06-21
album: בית אבי
  type: MusicAlbum
  date published: 2021-06-22
album: ארץ מרחקים
  type: MusicAlbum
  date published: 2025-08-30