Olle Gällmo
type: MusicGroup
description: right|thumb|300px Olle Gällmo (born 26 June 1966) is a Swedish musician and riksspelman,Upsala Nya Tidning 8 juli 2008 known for his work in playing and promoting the säckpipa, or traditional Swedis
popularity: 2
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb9b03716af1db8992001c2846a9c1095a1a72cd5f92edddbf7feb0298e80cea
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcb9b03716af1db8992001c2846a9c1095a1a72cd5f92edddbf7feb0298e80cea","name":"Olle Gällmo","registered_at":"2026-06-17T15:02:57Z","symbol":"NIM1432364","token_address":"0x9dc0d4f8f3f5e0abde5c1f08a4a507d39f034def","type":"artist","uuid":"8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de"}
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 0xcb9b03716af1db8992001c2846a9c1095a1a72cd5f92edddbf7feb0298e80cea. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de.json and https://artists.proofprofile.net/proofs/artist/8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xcb9b03716af1db8992001c2846a9c1095a1a72cd5f92edddbf7feb0298e80cea","name":"Olle Gällmo","registered_at":"2026-06-17T15:02:57Z","symbol":"NIM1432364","token_address":"0x9dc0d4f8f3f5e0abde5c1f08a4a507d39f034def","type":"artist","uuid":"8d74f9c8-f3d9-4fc9-b2b3-13d4e17894de"}
album: med pipan i säcken
  type: MusicAlbum
  date published: 2008-06-26
album: Allt förvandlas
  type: MusicAlbum
  date published: 2017-08-18