EFE
type: MusicGroup
genre: finnish hip hop
description: Agencia EFE, S.A. () is a Spanish international news agency, the major Spanish-language multimedia news agency and the world's fourth largest wire service after the Associated Press, Reuters, and Agen
popularity: 3
followers: 132
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x856baea288d0e88796c7fb0e901168ab0d4f8d0ea6fd55d4654b3c4223c2d833
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab43984b-ce3e-4519-93f3-d37ecaa5b7a5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab43984b-ce3e-4519-93f3-d37ecaa5b7a5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab43984b-ce3e-4519-93f3-d37ecaa5b7a5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
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 0x856baea288d0e88796c7fb0e901168ab0d4f8d0ea6fd55d4654b3c4223c2d833. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab43984b-ce3e-4519-93f3-d37ecaa5b7a5.json and https://artists.proofprofile.net/proofs/artist/ab43984b-ce3e-4519-93f3-d37ecaa5b7a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
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  type: MusicAlbum
  date published: 2017-09-02
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  type: MusicAlbum
  date published: 2018-05-09
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  type: MusicAlbum
  date published: 2018-12-13
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  type: MusicAlbum
  date published: 2018-12-13
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  type: MusicAlbum
  date published: 2019-02-14
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  type: MusicAlbum
  date published: 2019-04-18
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  type: MusicAlbum
  date published: 2019-04-18
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  type: MusicAlbum
  date published: 2021-06-04