Andrzej Blumenfeld
type: MusicGroup
description: Andrzej Stanisław Blumenfeld (12 August 1951 – 14 August 2017) was a Polish film, television, and voice actor who worked for SDI Media Polska. Filmography The Young Magician (1987) - Teacher Legend
popularity: 3
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x775a56664c791efe60f1ae036185a0f0ea98746ce1ab1f247ee6ef06725fb7d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1be62fb2-578d-4154-92ed-3c12bd42d718.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1be62fb2-578d-4154-92ed-3c12bd42d718.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1be62fb2-578d-4154-92ed-3c12bd42d718
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x775a56664c791efe60f1ae036185a0f0ea98746ce1ab1f247ee6ef06725fb7d6","name":"Andrzej Blumenfeld","registered_at":"2026-06-15T23:10:04Z","symbol":"NIM0861445","token_address":"0xa16fe9cbfb463db8534f8a370b11eedff29740fd","type":"artist","uuid":"1be62fb2-578d-4154-92ed-3c12bd42d718"}
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 0x775a56664c791efe60f1ae036185a0f0ea98746ce1ab1f247ee6ef06725fb7d6. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1be62fb2-578d-4154-92ed-3c12bd42d718.json and https://artists.proofprofile.net/proofs/artist/1be62fb2-578d-4154-92ed-3c12bd42d718.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x775a56664c791efe60f1ae036185a0f0ea98746ce1ab1f247ee6ef06725fb7d6","name":"Andrzej Blumenfeld","registered_at":"2026-06-15T23:10:04Z","symbol":"NIM0861445","token_address":"0xa16fe9cbfb463db8534f8a370b11eedff29740fd","type":"artist","uuid":"1be62fb2-578d-4154-92ed-3c12bd42d718"}