Abolhasan Saba
type: MusicGroup
description: Abolhasan Saba (; 15 April 1902 – 19 December 1957) was a renowned Iranian composer, violinist, and setar player. Biography thumb|left|Manoochehr Sadeghi (left), Saba (middle), Faramarz Payvar (right
popularity: 2
followers: 2625
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c49a9b69bdb88981abe64a92f50443bf868cdecf03b0a53dd53c0235891a314
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54c7eec9-78a1-4c67-9de1-963bb30b8800.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54c7eec9-78a1-4c67-9de1-963bb30b8800.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/54c7eec9-78a1-4c67-9de1-963bb30b8800
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c49a9b69bdb88981abe64a92f50443bf868cdecf03b0a53dd53c0235891a314","name":"Abolhasan Saba","registered_at":"2026-06-16T19:05:58Z","symbol":"NIM1146908","token_address":"0xdf54c672d3cab8c9f2f8f9afb26a040033265894","type":"artist","uuid":"54c7eec9-78a1-4c67-9de1-963bb30b8800"}
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 0x0c49a9b69bdb88981abe64a92f50443bf868cdecf03b0a53dd53c0235891a314. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54c7eec9-78a1-4c67-9de1-963bb30b8800.json and https://artists.proofprofile.net/proofs/artist/54c7eec9-78a1-4c67-9de1-963bb30b8800.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x0c49a9b69bdb88981abe64a92f50443bf868cdecf03b0a53dd53c0235891a314","name":"Abolhasan Saba","registered_at":"2026-06-16T19:05:58Z","symbol":"NIM1146908","token_address":"0xdf54c672d3cab8c9f2f8f9afb26a040033265894","type":"artist","uuid":"54c7eec9-78a1-4c67-9de1-963bb30b8800"}
album: Abolhasan Saba, Violin, Vol. 1
  type: MusicAlbum
  date published: 2002-07-02
album: Abolhasan Saba, Setar
  type: MusicAlbum
  date published: 2002-09-04
album: Collection of Iranian Music 12
  type: MusicAlbum
  date published: 2005
album: Collection of Iranian Music
  type: MusicAlbum
  date published: 2006
album: Collection of Iranian Music 7
  type: MusicAlbum
  date published: 2006
album: Setar by Saba
  type: MusicAlbum
  date published: 2010-06-06
album: Violin By Saba 3
  type: MusicAlbum
  date published: 2010-06-06
album: Violin By Saba 1
  type: MusicAlbum
  date published: 2010-06-06
album: Violin By Saba 2
  type: MusicAlbum
  date published: 2010-06-07
album: Abolhasan Saba, Violin, Vol. 3
  type: MusicAlbum
  date published: 2011-09-06
album: Abolhasan Saba, Violin, Vol. 2
  type: MusicAlbum
  date published: 2011-09-08
album: Violin Solo
  type: MusicAlbum
  date published: 2015-04-01
album: Masnavi Saba
  type: MusicAlbum
  date published: 2017-01-01
album: Masnavi Saba
  type: MusicAlbum
  date published: 2017-01-01
album: Masnaviye Saba
  type: MusicAlbum
  date published: 2017-08-23
album: Baade Saba (Tamrin Dashti)
  type: MusicAlbum
  date published: 2020-03-31