Urban Symphony
type: MusicGroup
genre: tango
description: Urban Symphony were an Estonian music group. They represented Estonia in the Eurovision Song Contest 2009 with the song "Rändajad", finishing in 6th place with 129 points. In doing this, they achieved
popularity: 18
followers: 2154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7a65a0e396b218099fd8eb4ad52f08aef687ef01ca7ccd9db3974e2474d7c85c
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/7988951d-8c5c-4a2d-9563-8c2135bc3436.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/7988951d-8c5c-4a2d-9563-8c2135bc3436.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
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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 0x7a65a0e396b218099fd8eb4ad52f08aef687ef01ca7ccd9db3974e2474d7c85c. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7988951d-8c5c-4a2d-9563-8c2135bc3436.json and https://artists.proofprofile.net/proofs/artist/7988951d-8c5c-4a2d-9563-8c2135bc3436.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x7a65a0e396b218099fd8eb4ad52f08aef687ef01ca7ccd9db3974e2474d7c85c","name":"Urban Symphony","registered_at":"2026-06-14T17:13:07Z","symbol":"NIM0520951","token_address":"0x872c481912b59d73a169be91c859264f6b08208b","type":"artist","uuid":"7988951d-8c5c-4a2d-9563-8c2135bc3436"}
album: Rändajad (Eurovision 2009)
  type: MusicAlbum
  date published: 2009-01-01
album: Rändajad
  type: MusicAlbum
  date published: 2009-05-18
album: Päikese Poole
  type: MusicAlbum
  date published: 2009-06-30
  track: Päikese Poole
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206796
    explicit: false
    by artist: Urban Symphony
    in album: Päikese Poole
      type: MusicAlbum
      date published: 2009-06-30
    genre: tango
    isrc code: USTCF1057511
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: CopyrightRegisteredAt
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTCF1057511
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:45:31Z
    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 0xf381009162a14a73b57ef3158cc72d8225742f83e2eae1364117cfca3fb05bd0. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USTCF1057511.
      date published: 2026-07-19T07:45:31Z
    audio: Päikese Poole
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.951
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.609
      additional property: Energy
        type: PropertyValue
        value: 0.578
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.283
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.171
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.367
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.943
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Skorpion
  type: MusicAlbum
  date published: 2010-03-27
album: Päikese Poole (Gash Mo Remix)
  type: MusicAlbum
  date published: 2010-06-02
album: Where Is The Diamond
  type: MusicAlbum
  date published: 2011-04-18