Tsörf
type: MusicGroup
popularity: 4
followers: 682
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc400bc0a28985331dfd66a0d905fc501cb91109fdf37142ee09feb430a1b12da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75fca712-8cbf-4c59-9b25-84a57b2bf8ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75fca712-8cbf-4c59-9b25-84a57b2bf8ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/75fca712-8cbf-4c59-9b25-84a57b2bf8ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc400bc0a28985331dfd66a0d905fc501cb91109fdf37142ee09feb430a1b12da","name":"Tsörf","registered_at":"2026-06-17T06:42:06Z","symbol":"NIM1313020","token_address":"0x3c944d96240e9cd26ac9bcea367f4bf0abda6525","type":"artist","uuid":"75fca712-8cbf-4c59-9b25-84a57b2bf8ba"}
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 0xc400bc0a28985331dfd66a0d905fc501cb91109fdf37142ee09feb430a1b12da. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75fca712-8cbf-4c59-9b25-84a57b2bf8ba.json and https://artists.proofprofile.net/proofs/artist/75fca712-8cbf-4c59-9b25-84a57b2bf8ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc400bc0a28985331dfd66a0d905fc501cb91109fdf37142ee09feb430a1b12da","name":"Tsörf","registered_at":"2026-06-17T06:42:06Z","symbol":"NIM1313020","token_address":"0x3c944d96240e9cd26ac9bcea367f4bf0abda6525","type":"artist","uuid":"75fca712-8cbf-4c59-9b25-84a57b2bf8ba"}
album: Can I Be Close 2U?
  type: MusicAlbum
  date published: 2016-02-15
  track: Can I Be Close 2U?
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220763
    explicit: false
    by artist: Tsörf
    in album: Can I Be Close 2U?
      type: MusicAlbum
      date published: 2016-02-15
    isrc code: NZRI11600270
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T22:38:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc478baa3c858bd58440b3c459b966ded85635268b2d5d79171f975cda3405bdb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958942
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958942
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NZRI11600270
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:24:07Z
    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 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 0xc478baa3c858bd58440b3c459b966ded85635268b2d5d79171f975cda3405bdb. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/NZRI11600270.
      date published: 2026-07-21T00:24:07Z
    audio: Can I Be Close 2U?
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.563
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.473
      additional property: Energy
        type: PropertyValue
        value: 0.4
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.7
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.137
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.147
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.27
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Know the Light
  type: MusicAlbum
  date published: 2016-05-05
  track: Know the Light
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231608
    explicit: false
    by artist: Tsörf
    in album: Know the Light
      type: MusicAlbum
      date published: 2016-05-05
    isrc code: TCACO1627100
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:54:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x874f083ea7b5f8b5be18f4ce6247d3bdfcdd321c86227d095a5d37863927d7db
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958756
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958756
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACO1627100
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:12:29Z
    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 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 0x874f083ea7b5f8b5be18f4ce6247d3bdfcdd321c86227d095a5d37863927d7db. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/TCACO1627100.
      date published: 2026-07-19T16:12:29Z
    audio: Know the Light
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 83.008
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.624
      additional property: Energy
        type: PropertyValue
        value: 0.539
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.228
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.148
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.408
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Hold on to Me

Loudness (dB)
type: PropertyValue
value: -7.03

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Minor

Hold on to Me
type: MusicAlbum
date published: 2016-12-08

Hold on to Me
type: MusicAlbum
date published: 2017-04-22

Hold on to Me
type: MusicAlbum
date published: 2017-04-26