Local Call
type: MusicGroup
description: In telephony, the term local call has the following meanings: Any call using a single switching center; that is, not traveling to another telephone network; A call made within a local calling area
popularity: 3
followers: 123
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c99ec3b062a8c44bd1d87e3afdca2d0db6242524578b7428718cfbaa7e9c9a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0609d454-f5e6-4c60-bbed-2eeaf7ffa2e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0609d454-f5e6-4c60-bbed-2eeaf7ffa2e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0609d454-f5e6-4c60-bbed-2eeaf7ffa2e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9c99ec3b062a8c44bd1d87e3afdca2d0db6242524578b7428718cfbaa7e9c9a0","name":"Local Call","registered_at":"2026-06-15T15:41:52Z","symbol":"NIM0754519","token_address":"0x7327ef1eb69723ce22d505cef206f4a78c3df352","type":"artist","uuid":"0609d454-f5e6-4c60-bbed-2eeaf7ffa2e0"}
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 0x9c99ec3b062a8c44bd1d87e3afdca2d0db6242524578b7428718cfbaa7e9c9a0. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0609d454-f5e6-4c60-bbed-2eeaf7ffa2e0.json and https://artists.proofprofile.net/proofs/artist/0609d454-f5e6-4c60-bbed-2eeaf7ffa2e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x9c99ec3b062a8c44bd1d87e3afdca2d0db6242524578b7428718cfbaa7e9c9a0","name":"Local Call","registered_at":"2026-06-15T15:41:52Z","symbol":"NIM0754519","token_address":"0x7327ef1eb69723ce22d505cef206f4a78c3df352","type":"artist","uuid":"0609d454-f5e6-4c60-bbed-2eeaf7ffa2e0"}
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