Kölner Haie
type: MusicGroup
description: The Kölner Haie (English: Cologne Sharks) are an ice hockey club based in Cologne, Germany, that plays in the professional Deutsche Eishockey Liga (DEL). The team was one of the founding members of th
popularity: 4
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd72ee78f2a911650d15f3ee3b11644a3eef56ea615c2dcff169252a08102ce63
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa481d6a-e38b-48be-9d94-d2cc4fbcd79d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa481d6a-e38b-48be-9d94-d2cc4fbcd79d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa481d6a-e38b-48be-9d94-d2cc4fbcd79d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd72ee78f2a911650d15f3ee3b11644a3eef56ea615c2dcff169252a08102ce63","name":"Kölner Haie","registered_at":"2026-06-21T16:40:58Z","symbol":"NIM1976177","token_address":"0x2c6dd639ea0b33bada5f8cd801d22bb5a28c1007","type":"artist","uuid":"fa481d6a-e38b-48be-9d94-d2cc4fbcd79d"}
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 0xd72ee78f2a911650d15f3ee3b11644a3eef56ea615c2dcff169252a08102ce63. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa481d6a-e38b-48be-9d94-d2cc4fbcd79d.json and https://artists.proofprofile.net/proofs/artist/fa481d6a-e38b-48be-9d94-d2cc4fbcd79d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xd72ee78f2a911650d15f3ee3b11644a3eef56ea615c2dcff169252a08102ce63","name":"Kölner Haie","registered_at":"2026-06-21T16:40:58Z","symbol":"NIM1976177","token_address":"0x2c6dd639ea0b33bada5f8cd801d22bb5a28c1007","type":"artist","uuid":"fa481d6a-e38b-48be-9d94-d2cc4fbcd79d"}