Barack Obama
type: MusicGroup
description: Barack Hussein Obama II (born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, he was the first Afri
popularity: 22
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c2a5a19760f970d643790b09650e2b62d98df390622ab0286b2933d411ce066
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/17416760-7187-4c04-9ef2-c7129b1b4a11.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17416760-7187-4c04-9ef2-c7129b1b4a11.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/17416760-7187-4c04-9ef2-c7129b1b4a11
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c2a5a19760f970d643790b09650e2b62d98df390622ab0286b2933d411ce066","name":"Barack Obama","registered_at":"2026-06-11T12:35:24Z","symbol":"NIM0030112","token_address":"0xb2750b8926497434bda2d73658f9f6aa39f0d1b6","type":"artist","uuid":"17416760-7187-4c04-9ef2-c7129b1b4a11"}
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 0x8c2a5a19760f970d643790b09650e2b62d98df390622ab0286b2933d411ce066. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17416760-7187-4c04-9ef2-c7129b1b4a11.json and https://artists.proofprofile.net/proofs/artist/17416760-7187-4c04-9ef2-c7129b1b4a11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x8c2a5a19760f970d643790b09650e2b62d98df390622ab0286b2933d411ce066","name":"Barack Obama","registered_at":"2026-06-11T12:35:24Z","symbol":"NIM0030112","token_address":"0xb2750b8926497434bda2d73658f9f6aa39f0d1b6","type":"artist","uuid":"17416760-7187-4c04-9ef2-c7129b1b4a11"}