Purpler
type: MusicGroup
popularity: 2
followers: 348
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf5b477170115ed98e4d4efa033b7e959e53b9ac3300e6316fb5104b38e71e09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5dcfd97c-1efe-49a5-8e0f-6c3379903334.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5dcfd97c-1efe-49a5-8e0f-6c3379903334.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5dcfd97c-1efe-49a5-8e0f-6c3379903334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 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 0xaf5b477170115ed98e4d4efa033b7e959e53b9ac3300e6316fb5104b38e71e09. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dcfd97c-1efe-49a5-8e0f-6c3379903334.json and https://artists.proofprofile.net/proofs/artist/5dcfd97c-1efe-49a5-8e0f-6c3379903334.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Chained
  type: MusicAlbum
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  type: MusicAlbum
  date published: 2017-07-17
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  type: MusicAlbum
  date published: 2017-08-13
album: On Fire
  type: MusicAlbum
  date published: 2017-08-14
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  type: MusicAlbum
  date published: 2018-04-10
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album: Stages of Evolution
  type: MusicAlbum
  date published: 2020-05-20
album: Stages of Evolution
  type: MusicAlbum
  date published: 2020-05-20
album: Heretic
  type: MusicAlbum
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album: Heretic
  type: MusicAlbum
  date published: 2020-06-08
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  type: MusicAlbum
  date published: 2020-08-28
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  type: MusicAlbum
  date published: 2021-10-06
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  type: MusicAlbum
  date published: 2022-07-04
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  type: MusicAlbum
  date published: 2022-07-26
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  type: MusicAlbum
  date published: 2024-07-19
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  type: MusicAlbum
  date published: 2025-02-21