Stef Lang
type: MusicGroup
popularity: 23
followers: 1047
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe01764792aff208e83dfb68b762ebb3b9f73db58d7b03b6ecaf14f685d4fb341
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/61b773bd-e0ae-4e97-ade3-7ee55996d4ef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/61b773bd-e0ae-4e97-ade3-7ee55996d4ef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/61b773bd-e0ae-4e97-ade3-7ee55996d4ef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe01764792aff208e83dfb68b762ebb3b9f73db58d7b03b6ecaf14f685d4fb341","name":"Stef Lang","registered_at":"2026-06-11T22:51:51Z","symbol":"NIM0127689","token_address":"0x7bac3dba31941f4a5f0f92b46927eeec4671646f","type":"artist","uuid":"61b773bd-e0ae-4e97-ade3-7ee55996d4ef"}
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 0xe01764792aff208e83dfb68b762ebb3b9f73db58d7b03b6ecaf14f685d4fb341. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61b773bd-e0ae-4e97-ade3-7ee55996d4ef.json and https://artists.proofprofile.net/proofs/artist/61b773bd-e0ae-4e97-ade3-7ee55996d4ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xe01764792aff208e83dfb68b762ebb3b9f73db58d7b03b6ecaf14f685d4fb341","name":"Stef Lang","registered_at":"2026-06-11T22:51:51Z","symbol":"NIM0127689","token_address":"0x7bac3dba31941f4a5f0f92b46927eeec4671646f","type":"artist","uuid":"61b773bd-e0ae-4e97-ade3-7ee55996d4ef"}
album: Blood and Bravery
  type: MusicAlbum
  date published: 2009-12-15
album: The Underdog
  type: MusicAlbum
  date published: 2010-05-04
  track: Mr. Immature
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202986
    explicit: false
    by artist: Stef Lang
    in album: The Underdog
      type: MusicAlbum
      date published: 2010-05-04
    isrc code: CA17N1000005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T18:01:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x004ed0c51f9d1777b0e62f92bacc876a987f56c9aee6d66cdb565eda892399b8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA17N1000005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x004ed0c51f9d1777b0e62f92bacc876a987f56c9aee6d66cdb565eda892399b8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CA17N1000005.
      date published: 2026-07-03T21:18:05Z
    audio: Mr. Immature
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.304
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.518
      additional property: Energy
        type: PropertyValue
        value: 0.614
      additional property: Speechiness
        type: PropertyValue
        value: 0.161
      additional property: Acousticness
        type: PropertyValue
        value: 0.359
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.771
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.437
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Underdog
  type: MusicAlbum
  date published: 2010-05-04
album: What We Gonna Do
  type: MusicAlbum
  date published: 2011-08-02
album: Burn All Your Ships
  type: MusicAlbum
  date published: 2011-08-02
album: Fighting Mirrors
  type: MusicAlbum
  date published: 2012-02-29
album: Self
  type: MusicAlbum
  date published: 2012-11-13
album: Rubix
  type: MusicAlbum
  date published: 2014-08-26
album: Burn It to the Ground
  type: MusicAlbum
  date published: 2015-07-21
album: Going Places
  type: MusicAlbum
  date published: 2015-08-21
album: Validation
  type: MusicAlbum
  date published: 2015-08-28
album: Arrows, Pt. 1
  type: MusicAlbum
  date published: 2015-10-27
album: Arrows, Pt. 2
  type: MusicAlbum
  date published: 2016-08-16
album: Stronger
  type: MusicAlbum
  date published: 2016-10-18
track: All These Wounds
track: Chrysalis Heart - Stereojackers vs Mark Loverush Remix

All These Wounds
type: MusicRecording
duration: PT6M12S
duration ms: 372080
explicit: false
by artist: BT
by artist: Ilan Bluestone
by artist: Stef Lang
in album: Anjunabeats Worldwide 05
  type: MusicAlbum
  date published: 2015-05-25
isrc code: GBEWA1500395
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T01:34:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec5d04f500a2c979c73398c0d392207e9ec1696d546740fe2fd566083ec9a5c0
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/GBEWA1500395
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0xec5d04f500a2c979c73398c0d392207e9ec1696d546740fe2fd566083ec9a5c0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBEWA1500395.
  date published: 2026-07-02T03:55:08Z
audio: All These Wounds
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.719
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.56
  additional property: Energy
    type: PropertyValue
    value: 0.813
  additional property: Speechiness
    type: PropertyValue
    value: 0.072
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.057
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.17
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.148
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Chrysalis Heart - Stereojackers vs Mark Loverush Remix
type: MusicRecording
duration: PT7M32S
duration ms: 452733
explicit: false
by artist: Delerium
by artist: Stef Lang
by artist: Stereojackers
by artist: Mark Loverush
in album: A State Of Trance Radio Top 20 - August 2013 (Including Classic Bonus Track)
  type: MusicAlbum
  date published: 2013-08-09
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7edac83fd18dc39c9d4ff5cd690cbab42ed07b482c8c6922da2d3293261e0b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CAN111300225.
  date published: 2026-07-31T21:25:57Z
audio: Chrysalis Heart - Stereojackers vs Mark Loverush Remix
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.77
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.649
  additional property: Energy
    type: PropertyValue
    value: 0.785
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.737
  additional property: Liveness
    type: PropertyValue
    value: 0.487
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.307
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.463
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: CAN111300225
additional property: CopyrightID
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: 960468
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T21:25:57+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAN111300225
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960468
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960468
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T21:25:57+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 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