Nanak Singh
type: MusicGroup
description: Nanak Singh, (b. 4 July 1897 as Hans Raj – 28 December 1971), was an Indian poet, songwriter, and novelist of the Punjabi language. His literary works in support of India's independence movement led t
popularity: 8
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0480f301a926aa9a549fb9b272ce87878f5883c6ae37f471cc309f85c9ef0dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953911
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953911
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18396fcf-8119-4657-89dc-5766cb77587b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18396fcf-8119-4657-89dc-5766cb77587b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18396fcf-8119-4657-89dc-5766cb77587b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:03:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb0480f301a926aa9a549fb9b272ce87878f5883c6ae37f471cc309f85c9ef0dd","name":"Nanak Singh","registered_at":"2026-06-15T22:14:46Z","symbol":"NIM0848242","token_address":"0xbc7011b060b1a4f36105dbcf5e101e379c65ae80","type":"artist","uuid":"18396fcf-8119-4657-89dc-5766cb77587b"}
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 0xb0480f301a926aa9a549fb9b272ce87878f5883c6ae37f471cc309f85c9ef0dd. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18396fcf-8119-4657-89dc-5766cb77587b.json and https://artists.proofprofile.net/proofs/artist/18396fcf-8119-4657-89dc-5766cb77587b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T08:03:10Z
  text: {"copyright_id":"0xb0480f301a926aa9a549fb9b272ce87878f5883c6ae37f471cc309f85c9ef0dd","name":"Nanak Singh","registered_at":"2026-06-15T22:14:46Z","symbol":"NIM0848242","token_address":"0xbc7011b060b1a4f36105dbcf5e101e379c65ae80","type":"artist","uuid":"18396fcf-8119-4657-89dc-5766cb77587b"}
album: Chan Gujri Da
  type: MusicAlbum
  date published: 2018-11-11