itsmasc
type: MusicGroup
popularity: 2
followers: 117
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x811f4ab83e66f7d0fc3cbefa2784e31d8a3d0deba90ca12196e5ed53c100600e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14b4e263-7d5b-4185-8107-2bfe28147203.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14b4e263-7d5b-4185-8107-2bfe28147203.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/14b4e263-7d5b-4185-8107-2bfe28147203
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
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 0x811f4ab83e66f7d0fc3cbefa2784e31d8a3d0deba90ca12196e5ed53c100600e. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14b4e263-7d5b-4185-8107-2bfe28147203.json and https://artists.proofprofile.net/proofs/artist/14b4e263-7d5b-4185-8107-2bfe28147203.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:05:05Z
album: End
  type: MusicAlbum
  date published: 2017-09-20
album: Crazy
  type: MusicAlbum
  date published: 2017-09-27
album: Take Me Away
  type: MusicAlbum
  date published: 2017-09-27
album: U Know
  type: MusicAlbum
  date published: 2018-06-05
album: Not The Only Girl
  type: MusicAlbum
  date published: 2019-05-06
album: No Coffee
  type: MusicAlbum
  date published: 2019-07-08
album: Tell Me
  type: MusicAlbum
  date published: 2019-08-12
album: Your Pattern
  type: MusicAlbum
  date published: 2019-10-14
album: Too Long
  type: MusicAlbum
  date published: 2019-11-18
album: Citynights
  type: MusicAlbum
  date published: 2020-03-30
album: Sprouts
  type: MusicAlbum
  date published: 2020-04-27
album: I Can See
  type: MusicAlbum
  date published: 2020-07-13
album: Feel It 2
  type: MusicAlbum
  date published: 2020-09-07
album: Wait For You
  type: MusicAlbum
  date published: 2021-03-19
album: Birds
  type: MusicAlbum
  date published: 2022-05-20
album: the girl i like
  type: MusicAlbum
  date published: 2024-01-24
track: One Last Time

One Last Time
type: MusicRecording
duration: PT3M27S
duration ms: 207934
explicit: false
by artist: My Own System
by artist: SBR
by artist: itsmasc
in album: Crystal Heart
  type: MusicAlbum
  date published: 2016-01-01
isrc code: GBSMU2520129
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T20:23:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d84b1821684328567f89e6def44d9d3ba50235926a41c8e589ab22f20fa9a37
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2520129
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d84b1821684328567f89e6def44d9d3ba50235926a41c8e589ab22f20fa9a37. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBSMU2520129.
  date published: 2026-07-02T11:34:59Z
audio: One Last Time
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.193
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.739
  additional property: Energy
    type: PropertyValue
    value: 0.809
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.209
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.046
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.045
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.86
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major