Secret Keeper
type: MusicGroup
genre: melodic hardcore
genre: post-hardcore
genre: spoken word
popularity: 20
followers: 9303
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a838f9cdc74a27f0ff8b0141f6d4f53f7664226b41c3de48ed38ee2f812fb0e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953641
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39cb98fd-8589-4b40-9664-45e2b395e1df.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39cb98fd-8589-4b40-9664-45e2b395e1df.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39cb98fd-8589-4b40-9664-45e2b395e1df
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:54:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8a838f9cdc74a27f0ff8b0141f6d4f53f7664226b41c3de48ed38ee2f812fb0e","name":"Secret Keeper","registered_at":"2026-06-14T10:30:39Z","symbol":"NIM0424920","token_address":"0x356a28d93bdae72410ff43cac09703b13cb41d35","type":"artist","uuid":"39cb98fd-8589-4b40-9664-45e2b395e1df"}
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 0x8a838f9cdc74a27f0ff8b0141f6d4f53f7664226b41c3de48ed38ee2f812fb0e. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39cb98fd-8589-4b40-9664-45e2b395e1df.json and https://artists.proofprofile.net/proofs/artist/39cb98fd-8589-4b40-9664-45e2b395e1df.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T13:54:28Z
  text: {"copyright_id":"0x8a838f9cdc74a27f0ff8b0141f6d4f53f7664226b41c3de48ed38ee2f812fb0e","name":"Secret Keeper","registered_at":"2026-06-14T10:30:39Z","symbol":"NIM0424920","token_address":"0x356a28d93bdae72410ff43cac09703b13cb41d35","type":"artist","uuid":"39cb98fd-8589-4b40-9664-45e2b395e1df"}
album: Secret Keeper EP
  type: MusicAlbum
  date published: 2013-08-09
album: Losing Sleep
  type: MusicAlbum
  date published: 2015-01-03
  track: Left Alone
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250067
    explicit: false
    by artist: Secret Keeper
    in album: Losing Sleep
      type: MusicAlbum
      date published: 2015-01-03
    genre: melodic hardcore
    genre: post-hardcore
    genre: spoken word
    isrc code: USCGH1500270
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T06:22:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3bc1db890fa42b4501d574fcda5fb357a6a6e06015a6a56c21c1af35e2f08fac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958686
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958686
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1500270
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T06:43:29Z
    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 0x3bc1db890fa42b4501d574fcda5fb357a6a6e06015a6a56c21c1af35e2f08fac. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1500270 — a six-check JSON result.
      date published: 2026-07-19T06:43:29Z
    audio: Left Alone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.011
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.474
      additional property: Energy
        type: PropertyValue
        value: 0.934
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.049
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.386
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.087
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ghost - EP
  type: MusicAlbum
  date published: 2016-03-11
  track: Haunt
    type: MusicRecording
    duration: PT4M26S
    duration ms: 266000
    explicit: false
    by artist: Secret Keeper
    in album: Ghost - EP
      type: MusicAlbum
      date published: 2016-03-11
    genre: melodic hardcore
    genre: post-hardcore
    genre: spoken word
    isrc code: USCGJ1606952
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T22:03:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa9c327a2a0254f5650f5d7648380901fb88e63db39efe0d864e93c078ba469e5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958208
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958208
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1606952
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T22:40:25Z
    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 0xa9c327a2a0254f5650f5d7648380901fb88e63db39efe0d864e93c078ba469e5. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1606952 — a six-check JSON result.
      date published: 2026-07-15T22:40:25Z
    audio: Haunt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.999
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.518
      additional property: Energy
        type: PropertyValue
        value: 0.923
      additional property: Speechiness
        type: PropertyValue
        value: 0.12
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Ghost
album: What a Shame
album: Hypnosis
album: Blood Smell
album: Sycamore
album: Cemetery Feelings
album: Crushed
album: No More Flowers
album: Luxury Funerals
album: We'll Fail Together
album: Snow In Tokyo
album: Dear Love, I Let You Go.

Acousticness
type: PropertyValue
value: 0.053

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.485

Valence (Positivity)
type: PropertyValue
value: 0.355

Loudness (dB)
type: PropertyValue
value: -5.33

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Ghost
type: MusicRecording
duration: PT4M58S
duration ms: 298750
explicit: false
by artist: Secret Keeper
in album: Ghost - EP
  type: MusicAlbum
  date published: 2016-03-11
genre: melodic hardcore
genre: post-hardcore
genre: spoken word
isrc code: USCGJ1606954
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T11:15:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6744ec42d2dc065341b92e7c05666d14c1b7814b858ce0c3b9ed4ee9330d4495
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956822
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956822
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1606954
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T18:48:28Z
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 0x6744ec42d2dc065341b92e7c05666d14c1b7814b858ce0c3b9ed4ee9330d4495. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1606954 — a six-check JSON result.
  date published: 2026-07-05T18:48:28Z
audio: Ghost
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.075
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.616
  additional property: Energy
    type: PropertyValue
    value: 0.572
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.801
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.052
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.085
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.608
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

What a Shame
type: MusicAlbum
date published: 2017-10-29

Hypnosis
type: MusicAlbum
date published: 2017-12-01

Blood Smell
type: MusicAlbum
date published: 2018-12-14

Sycamore
type: MusicAlbum
date published: 2019-10-18

Cemetery Feelings
type: MusicAlbum
date published: 2019-12-06

Crushed
type: MusicAlbum
date published: 2021-02-26

No More Flowers
type: MusicAlbum
date published: 2021-04-30

Luxury Funerals
type: MusicAlbum
date published: 2021-09-10

We'll Fail Together
type: MusicAlbum
date published: 2021-10-22

We'll Fail Together
type: MusicAlbum
date published: 2021-10-22

Snow In Tokyo
type: MusicAlbum
date published: 2023-02-10

Dear Love, I Let You Go.
type: MusicAlbum
date published: 2023-07-28