Saša
type: MusicGroup
description: thumb | right | 200px | alt=Sasha Vujačić | Aleksandar Saša VujačićSaša is a South Slavic given name. It is a diminutive of Aleksandar (see Sasha), but in the South Slavic countries it is often a for
popularity: 2
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a0322b9d6430ed0a957c2a64189dbbddc73a369ec76f4aa7c8f24292ef59381
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc2b2b1a-ac6f-4fa8-89e3-7552899395a1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc2b2b1a-ac6f-4fa8-89e3-7552899395a1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc2b2b1a-ac6f-4fa8-89e3-7552899395a1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5a0322b9d6430ed0a957c2a64189dbbddc73a369ec76f4aa7c8f24292ef59381","name":"Saša","registered_at":"2026-06-20T23:33:27Z","symbol":"NIM1746360","token_address":"0x6111e4275eba51d9108f97fd0ea1e57b4b9d982f","type":"artist","uuid":"cc2b2b1a-ac6f-4fa8-89e3-7552899395a1"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0322b9d6430ed0a957c2a64189dbbddc73a369ec76f4aa7c8f24292ef59381. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc2b2b1a-ac6f-4fa8-89e3-7552899395a1.json and https://artists.proofprofile.net/proofs/artist/cc2b2b1a-ac6f-4fa8-89e3-7552899395a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x5a0322b9d6430ed0a957c2a64189dbbddc73a369ec76f4aa7c8f24292ef59381","name":"Saša","registered_at":"2026-06-20T23:33:27Z","symbol":"NIM1746360","token_address":"0x6111e4275eba51d9108f97fd0ea1e57b4b9d982f","type":"artist","uuid":"cc2b2b1a-ac6f-4fa8-89e3-7552899395a1"}
album: En gång till
  type: MusicAlbum
  date published: 2025-06-06
  track: En gång till
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138064
    explicit: false
    by artist: Saša
    in album: En gång till
      type: MusicAlbum
      date published: 2025-06-06
    isrc code: SE6XX2533261
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:51:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x12c5135f0b18b35820a9f90c368fca0a2feb4e12a74596464c5baf67ade200f7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2533261
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c5135f0b18b35820a9f90c368fca0a2feb4e12a74596464c5baf67ade200f7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2533261.
      date published: 2026-07-05T10:01:46Z
    audio: En gång till
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 185.945
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.485
      additional property: Energy
        type: PropertyValue
        value: 0.641
      additional property: Speechiness
        type: PropertyValue
        value: 0.148
      additional property: Acousticness
        type: PropertyValue
        value: 0.194
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.233
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.736
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor