MRSL
type: MusicGroup
description: MRSL may refer to: Minnesota Recreational Soccer League, an adult soccer association, part of the Minnesota Amateur Soccer League Salama Airport, in Costa Rica by ICAO code
popularity: 6
followers: 217
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x051641b62be6470002eb527867d9d56ab9d6a6bb4ec439f4907fc77e9a9dd7c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1971bad1-0158-400e-9259-a483396da83b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1971bad1-0158-400e-9259-a483396da83b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1971bad1-0158-400e-9259-a483396da83b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051641b62be6470002eb527867d9d56ab9d6a6bb4ec439f4907fc77e9a9dd7c7. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1971bad1-0158-400e-9259-a483396da83b.json and https://artists.proofprofile.net/proofs/artist/1971bad1-0158-400e-9259-a483396da83b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
album: Na Trzy
  type: MusicAlbum
  date published: 2021-09-17
album: Czerwone Korale
  type: MusicAlbum
  date published: 2021-11-17
album: Szklany Cień (Remix)
  type: MusicAlbum
  date published: 2022-02-28
album: Czerwona
  type: MusicAlbum
  date published: 2022-02-28
  track: Czerwone Korale
    type: MusicRecording
    duration: PT3M53S
    duration ms: 233905
    explicit: false
    by artist: MRSL
    in album: Czerwona
      type: MusicAlbum
      date published: 2022-02-28
    isrc code: PLH492171865
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T21:35:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x32de3de774dec719c758f3ef7688ed5710027578ad3b1db22d95ec5a7fc28945
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958211
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958211
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLH492171865
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T23:24:33Z
    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 0x32de3de774dec719c758f3ef7688ed5710027578ad3b1db22d95ec5a7fc28945. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/PLH492171865.
      date published: 2026-07-15T23:24:33Z
    audio: Czerwone Korale
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.016
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.752
      additional property: Energy
        type: PropertyValue
        value: 0.5
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.299
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.743
      additional property: Liveness
        type: PropertyValue
        value: 0.181
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.301
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.473
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Obojętne
  type: MusicAlbum
  date published: 2022-03-11
album: Obojętne
  type: MusicAlbum
  date published: 2022-03-11
album: Kręci Się Ziemia
  type: MusicAlbum
  date published: 2022-08-31
album: Rise From My Own Grave
  type: MusicAlbum
  date published: 2022-10-28
album: Zostań
  type: MusicAlbum
  date published: 2023-01-20
album: Kiedy Ją Dotykasz
  type: MusicAlbum
  date published: 2023-11-03
album: Na Dnie
  type: MusicAlbum
  date published: 2024-01-05
album: Odrodzenie
  type: MusicAlbum
  date published: 2024-06-19