Sondos
type: MusicGroup
description: thumb|250px|Rice fields in Sondos Sondos (, also Romanized as Sandas and Sendes, is a village in Rudbar County, of Gilan Province of Iran. Its population at the 2016 census was 151 people in 63 househ
popularity: 2
followers: 342
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe663d487e10daa00f417326c705c336f86181c252206c3bea95cf219c8f54407
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0eaf94d9-284d-4a96-bac0-8c895dcf7990.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0eaf94d9-284d-4a96-bac0-8c895dcf7990.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0eaf94d9-284d-4a96-bac0-8c895dcf7990
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
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 0xe663d487e10daa00f417326c705c336f86181c252206c3bea95cf219c8f54407. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0eaf94d9-284d-4a96-bac0-8c895dcf7990.json and https://artists.proofprofile.net/proofs/artist/0eaf94d9-284d-4a96-bac0-8c895dcf7990.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Niño Gris
  type: MusicAlbum
  date published: 2022-09-09
album: Otra Dirección
  type: MusicAlbum
  date published: 2023-04-20
album: Locura
  type: MusicAlbum
  date published: 2024-10-11
album: Hacerte Ver
  type: MusicAlbum
  date published: 2024-12-13
album: Tu Veneno
  type: MusicAlbum
  date published: 2025-05-23