Mark Evich
type: MusicGroup
popularity: 4
followers: 604
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x761b1b099b8cfa62312f35bbccea19bb9792e41bf27cca10c4c43e38470bf6f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/302407b6-1654-47c6-a9ce-838e9d6bbccf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/302407b6-1654-47c6-a9ce-838e9d6bbccf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/302407b6-1654-47c6-a9ce-838e9d6bbccf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x761b1b099b8cfa62312f35bbccea19bb9792e41bf27cca10c4c43e38470bf6f8","name":"Mark Evich","registered_at":"2026-06-16T06:23:37Z","symbol":"NIM0965003","token_address":"0xb7c994b0c960347c4254d6ab98f9df41e12c72b8","type":"artist","uuid":"302407b6-1654-47c6-a9ce-838e9d6bbccf"}
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 0x761b1b099b8cfa62312f35bbccea19bb9792e41bf27cca10c4c43e38470bf6f8. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/302407b6-1654-47c6-a9ce-838e9d6bbccf.json and https://artists.proofprofile.net/proofs/artist/302407b6-1654-47c6-a9ce-838e9d6bbccf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x761b1b099b8cfa62312f35bbccea19bb9792e41bf27cca10c4c43e38470bf6f8","name":"Mark Evich","registered_at":"2026-06-16T06:23:37Z","symbol":"NIM0965003","token_address":"0xb7c994b0c960347c4254d6ab98f9df41e12c72b8","type":"artist","uuid":"302407b6-1654-47c6-a9ce-838e9d6bbccf"}
album: Immigrant Blues
  type: MusicAlbum
  date published: 2018-01-23
album: Solitude Works Wonders
  type: MusicAlbum
  date published: 2018-08-13
album: Stuck
  type: MusicAlbum
  date published: 2019-01-15
album: Stuck
  type: MusicAlbum
  date published: 2019-01-15
album: Backseat Love
  type: MusicAlbum
  date published: 2019-04-25
album: Backseat Love (Remix)
  type: MusicAlbum
  date published: 2019-08-30
album: Rainmaker
  type: MusicAlbum
  date published: 2019-11-01
album: Rainmaker
  type: MusicAlbum
  date published: 2019-11-01
album: Off the List
  type: MusicAlbum
  date published: 2020-12-04
album: Off the List
  type: MusicAlbum
  date published: 2020-12-04
album: Twice Upon a Time
  type: MusicAlbum
  date published: 2021-05-21
album: Twice Upon a Time
  type: MusicAlbum
  date published: 2021-05-21
album: Twice Upon A Time
  type: MusicAlbum
  date published: 2021-05-21
album: Back Home with U
  type: MusicAlbum
  date published: 2021-07-16
  track: Back Home with U
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195593
    explicit: false
    by artist: Mark Evich
    in album: Back Home with U
      type: MusicAlbum
      date published: 2021-07-16
    isrc code: GBKPL2155388
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T20:10:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x42417b80ba1978acba964a90774b69b805ba17d85f2c2c08a0cea0863dafd8db
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2155388
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x42417b80ba1978acba964a90774b69b805ba17d85f2c2c08a0cea0863dafd8db. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKPL2155388.
      date published: 2026-07-06T01:25:57Z
    audio: Back Home with U
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.973
      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: 0.94
      additional property: Energy
        type: PropertyValue
        value: 0.792
      additional property: Speechiness
        type: PropertyValue
        value: 0.281
      additional property: Acousticness
        type: PropertyValue
        value: 0.051
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.031
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.705
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.934
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Back Home with U
  type: MusicAlbum
  date published: 2021-07-16
album: Back Home With U
  type: MusicAlbum
  date published: 2021-07-16
album: Prime
  type: MusicAlbum
  date published: 2022-04-22
album: Gas Prices
  type: MusicAlbum
  date published: 2022-07-29
album: Gas Prices
  type: MusicAlbum
  date published: 2022-07-29
album: Pressure
  type: MusicAlbum
  date published: 2022-10-28
album: Pressure
  type: MusicAlbum
  date published: 2022-10-28
album: c u shine
  type: MusicAlbum
  date published: 2023-05-05
album: Rendez-Vous
  type: MusicAlbum
  date published: 2024-11-01
album: Rendez-Vous
  type: MusicAlbum
  date published: 2024-11-01
album: Miss Demeanor
  type: MusicAlbum
  date published: 2025-05-20
  track: Miss Demeanor
    type: MusicRecording
    duration: PT4M35S
    duration ms: 275820
    explicit: false
    by artist: Mark Evich
    in album: Miss Demeanor
    isrc code: SGW502505949
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Miss Demeanor

Mark Evich
type: MusicGroup

Miss Demeanor
type: MusicAlbum
date published: 2025-05-20

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-04T08:02:05+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xcedf6a6523b6e96f83497b86845d67c68d4cbf258c68d751fe6cce75538d669b

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956634

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956634

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGW502505949

OTSTimestamp
type: PropertyValue
value: 2026-07-04T10:04:33Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedf6a6523b6e96f83497b86845d67c68d4cbf258c68d751fe6cce75538d669b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SGW502505949.
date published: 2026-07-04T10:04:33Z

Miss Demeanor
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 64.969
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: 0.564
additional property: Energy
  type: PropertyValue
  value: 0.481
additional property: Speechiness
  type: PropertyValue
  value: 0.085
additional property: Acousticness
  type: PropertyValue
  value: 0.106
additional property: Instrumentalness
  type: PropertyValue
  value: 0.037
additional property: Liveness
  type: PropertyValue
  value: 0.453
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.722
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.41
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Minor