Gramercy Riffs
type: MusicGroup
description: The Gramercy Riffs is a Canadian indie rock band formed in St. John's in 2008. The band is in rotation on CBC Radio. The band was the recipient of the 2010 Atlantis Music Prize for their debut LP It'
popularity: 2
followers: 311
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x229373d143de77dd69761cdcb35983d770797f7670bf68fbf146ac5c13d0602b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0404ae83-9cc5-4432-a38b-f58cc8356a59.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0404ae83-9cc5-4432-a38b-f58cc8356a59.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0404ae83-9cc5-4432-a38b-f58cc8356a59
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x229373d143de77dd69761cdcb35983d770797f7670bf68fbf146ac5c13d0602b","name":"Gramercy Riffs","registered_at":"2026-06-15T15:01:53Z","symbol":"NIM0744970","token_address":"0xd5b124e98e0e24626618b3a56c2987e7bb0b4562","type":"artist","uuid":"0404ae83-9cc5-4432-a38b-f58cc8356a59"}
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 0x229373d143de77dd69761cdcb35983d770797f7670bf68fbf146ac5c13d0602b. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0404ae83-9cc5-4432-a38b-f58cc8356a59.json and https://artists.proofprofile.net/proofs/artist/0404ae83-9cc5-4432-a38b-f58cc8356a59.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0x229373d143de77dd69761cdcb35983d770797f7670bf68fbf146ac5c13d0602b","name":"Gramercy Riffs","registered_at":"2026-06-15T15:01:53Z","symbol":"NIM0744970","token_address":"0xd5b124e98e0e24626618b3a56c2987e7bb0b4562","type":"artist","uuid":"0404ae83-9cc5-4432-a38b-f58cc8356a59"}
album: It's Heartbreak
  type: MusicAlbum
  date published: 2010-05-25
album: Desire Trails
  type: MusicAlbum
  date published: 2014-03-24