combination lock
type: MusicGroup
description: thumb|right|A Wordlock letter combination lock. A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock. The sequence may be entered us
popularity: 3
followers: 458
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3df2b1bcd10fa3c4c45ccdb05eef7653f7618336e17f7686f389b87cfb537e84
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0455ad2a-5d12-41df-b4fd-ba64ba5a5db6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0455ad2a-5d12-41df-b4fd-ba64ba5a5db6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0455ad2a-5d12-41df-b4fd-ba64ba5a5db6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3df2b1bcd10fa3c4c45ccdb05eef7653f7618336e17f7686f389b87cfb537e84","name":"combination lock","registered_at":"2026-06-15T15:06:33Z","symbol":"NIM0746085","token_address":"0xfe145fdd2a8eec1d24dd12b3bf69e21c00d4284a","type":"artist","uuid":"0455ad2a-5d12-41df-b4fd-ba64ba5a5db6"}
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 0x3df2b1bcd10fa3c4c45ccdb05eef7653f7618336e17f7686f389b87cfb537e84. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0455ad2a-5d12-41df-b4fd-ba64ba5a5db6.json and https://artists.proofprofile.net/proofs/artist/0455ad2a-5d12-41df-b4fd-ba64ba5a5db6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x3df2b1bcd10fa3c4c45ccdb05eef7653f7618336e17f7686f389b87cfb537e84","name":"combination lock","registered_at":"2026-06-15T15:06:33Z","symbol":"NIM0746085","token_address":"0xfe145fdd2a8eec1d24dd12b3bf69e21c00d4284a","type":"artist","uuid":"0455ad2a-5d12-41df-b4fd-ba64ba5a5db6"}
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