Black Ingvars
type: MusicGroup
genre: epadunk
description: Black Ingvars is a Swedish humorist heavy metal group. Black Ingvars is famous for cover versions of songs from other musical styles, like pop, children's song (including "Sjörövar Fabbe" and "Här kom
popularity: 13
followers: 204
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bc64d6854227e07f6f7abd8501ff552cd2cf22b4eec4fd52ff4bc07800d426f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953610
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953610
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14a67fd7-a61a-4193-85d8-455dfddb2355.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14a67fd7-a61a-4193-85d8-455dfddb2355.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/14a67fd7-a61a-4193-85d8-455dfddb2355
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:58:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2bc64d6854227e07f6f7abd8501ff552cd2cf22b4eec4fd52ff4bc07800d426f","name":"Black Ingvars","registered_at":"2026-06-14T06:36:20Z","symbol":"NIM0369015","token_address":"0x8e8ec888a6679fe9951f964deeccb7d06d1f7bc4","type":"artist","uuid":"14a67fd7-a61a-4193-85d8-455dfddb2355"}
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 0x2bc64d6854227e07f6f7abd8501ff552cd2cf22b4eec4fd52ff4bc07800d426f. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14a67fd7-a61a-4193-85d8-455dfddb2355.json and https://artists.proofprofile.net/proofs/artist/14a67fd7-a61a-4193-85d8-455dfddb2355.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:58:09Z
  text: {"copyright_id":"0x2bc64d6854227e07f6f7abd8501ff552cd2cf22b4eec4fd52ff4bc07800d426f","name":"Black Ingvars","registered_at":"2026-06-14T06:36:20Z","symbol":"NIM0369015","token_address":"0x8e8ec888a6679fe9951f964deeccb7d06d1f7bc4","type":"artist","uuid":"14a67fd7-a61a-4193-85d8-455dfddb2355"}