De Facto
type: MusicGroup
genre: melodic house
genre: melodic techno
description: De facto (, ;Random House Kernerman Webster's College Dictionary. S.v. "de facto ." Retrieved January 12, 2018 ; ) practices are those that exist in reality or effect, without explicit recognition by
popularity: 2
followers: 270
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3bb8b38589e6619ddf476fceba8e5994e47e5443772f5dbe99f06b3b91a8770f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953950
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953950
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/24f1bf1c-ab2a-41a2-b12a-4c93ebfa25e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/24f1bf1c-ab2a-41a2-b12a-4c93ebfa25e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/24f1bf1c-ab2a-41a2-b12a-4c93ebfa25e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:35:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3bb8b38589e6619ddf476fceba8e5994e47e5443772f5dbe99f06b3b91a8770f","name":"De Facto","registered_at":"2026-06-16T02:23:04Z","symbol":"NIM0907546","token_address":"0xfc979fb347823521e3fd110642b0e1349f21d347","type":"artist","uuid":"24f1bf1c-ab2a-41a2-b12a-4c93ebfa25e3"}
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 0x3bb8b38589e6619ddf476fceba8e5994e47e5443772f5dbe99f06b3b91a8770f. Chain 2 (Bitcoin): anchored in block 953950 (2026-06-16T13:35:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24f1bf1c-ab2a-41a2-b12a-4c93ebfa25e3.json and https://artists.proofprofile.net/proofs/artist/24f1bf1c-ab2a-41a2-b12a-4c93ebfa25e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:35:39Z
  text: {"copyright_id":"0x3bb8b38589e6619ddf476fceba8e5994e47e5443772f5dbe99f06b3b91a8770f","name":"De Facto","registered_at":"2026-06-16T02:23:04Z","symbol":"NIM0907546","token_address":"0xfc979fb347823521e3fd110642b0e1349f21d347","type":"artist","uuid":"24f1bf1c-ab2a-41a2-b12a-4c93ebfa25e3"}
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