Metal Core
type: MusicGroup
popularity: 7
followers: 213
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca7272d1cb8f489e708c816bb2a3eadc54c9064a17b4e6c286709561dd55f70c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de6332fb-da86-4658-9f98-43b2af9f1c54.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de6332fb-da86-4658-9f98-43b2af9f1c54.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/de6332fb-da86-4658-9f98-43b2af9f1c54
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xca7272d1cb8f489e708c816bb2a3eadc54c9064a17b4e6c286709561dd55f70c","name":"Metal Core","registered_at":"2026-06-21T06:04:57Z","symbol":"NIM1842680","token_address":"0x62e0f269dde5420746927668db773d6f9c0ce621","type":"artist","uuid":"de6332fb-da86-4658-9f98-43b2af9f1c54"}
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 0xca7272d1cb8f489e708c816bb2a3eadc54c9064a17b4e6c286709561dd55f70c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de6332fb-da86-4658-9f98-43b2af9f1c54.json and https://artists.proofprofile.net/proofs/artist/de6332fb-da86-4658-9f98-43b2af9f1c54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xca7272d1cb8f489e708c816bb2a3eadc54c9064a17b4e6c286709561dd55f70c","name":"Metal Core","registered_at":"2026-06-21T06:04:57Z","symbol":"NIM1842680","token_address":"0x62e0f269dde5420746927668db773d6f9c0ce621","type":"artist","uuid":"de6332fb-da86-4658-9f98-43b2af9f1c54"}
album: Winter
  type: MusicAlbum
  date published: 2023-09-04
album: Ascension
  type: MusicAlbum
  date published: 2023-09-04
album: Outsider
  type: MusicAlbum
  date published: 2023-09-08
album: Wake Up
  type: MusicAlbum
  date published: 2023-09-22
album: Tears My Honey (I Swear I'm Not)
  type: MusicAlbum
  date published: 2023-09-24
album: Ethereal
  type: MusicAlbum
  date published: 2023-09-27
album: Black Side
  type: MusicAlbum
  date published: 2023-09-29
  track: Black Side
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154503
    explicit: false
    by artist: Metal Core
    in album: Black Side
      type: MusicAlbum
      date published: 2023-09-29
    isrc code: SGW502393888
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T05:22:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaa0d775399949bcc1014105305b882366c9e20dba6f13fa8cc657745ad94211c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958504
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958504
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGW502393888
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T05:41:32Z
    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 0xaa0d775399949bcc1014105305b882366c9e20dba6f13fa8cc657745ad94211c. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/SGW502393888.
      date published: 2026-07-18T05:41:32Z
    audio: Black Side
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 154.989
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.444
      additional property: Energy
        type: PropertyValue
        value: 0.79
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.865
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.468
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.801
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Epiphany
  type: MusicAlbum
  date published: 2023-10-04
  track: Epiphany
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250000
    explicit: false
    by artist: Metal Core
    in album: Epiphany
      type: MusicAlbum
      date published: 2023-10-04
    isrc code: SGW502378330
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T15:59:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x31fe5ea7a962cf1ed4ce6629c747cbe43f6cdbee93b3ea4f842553db9a23bc07
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SGW502378330
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0x31fe5ea7a962cf1ed4ce6629c747cbe43f6cdbee93b3ea4f842553db9a23bc07. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SGW502378330.
      date published: 2026-07-18T19:27:02Z
    audio: Epiphany
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.984
      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: 0.459
      additional property: Energy
      additional property: Speechiness
      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
album: When the Winter Comes
album: Axiomatic
album: Equanimity
album: Evanescent
album: Overarching Idea
album: Unison
album: Ephemeral
album: Sound Shadow
album: Drop D Djent
album: Human
album: Fetter
album: Drop G Kres Grindcore
album: Empowering
album: Prestige
album: Event Horizon
album: Encore
album: Something
album: Fate
album: D1 on 1 String
album: Resurrection
album: Solemn Tones Sanguine Drop a Kres
album: Drop B Counterkit

Energy
type: PropertyValue
value: 0.905

Speechiness
type: PropertyValue
value: 0.047

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.692

Liveness
type: PropertyValue
value: 0.546

Valence (Positivity)
type: PropertyValue
value: 0.056

Loudness (dB)
type: PropertyValue
value: -8.322

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

When the Winter Comes
type: MusicAlbum
date published: 2023-10-07

Axiomatic
type: MusicAlbum
date published: 2023-10-13

Equanimity
type: MusicAlbum
date published: 2023-10-18

Evanescent
type: MusicAlbum
date published: 2023-10-23

Overarching Idea
type: MusicAlbum
date published: 2023-10-27

Unison
type: MusicAlbum
date published: 2023-10-31

Ephemeral
type: MusicAlbum
date published: 2023-11-11

Sound Shadow
type: MusicAlbum
date published: 2023-11-15

Drop D Djent
type: MusicAlbum
date published: 2023-11-17

Human
type: MusicAlbum
date published: 2023-11-21

Fetter
type: MusicAlbum
date published: 2023-11-25

Drop G Kres Grindcore
type: MusicAlbum
date published: 2023-11-28

Empowering
type: MusicAlbum
date published: 2023-12-01

Prestige
type: MusicAlbum
date published: 2023-12-03

Event Horizon
type: MusicAlbum
date published: 2023-12-07

Encore
type: MusicAlbum
date published: 2023-12-13

Something
type: MusicAlbum
date published: 2023-12-19

Fate
type: MusicAlbum
date published: 2023-12-21

D1 on 1 String
type: MusicAlbum
date published: 2023-12-28

Resurrection
type: MusicAlbum
date published: 2023-12-31

Solemn Tones Sanguine Drop a Kres
type: MusicAlbum
date published: 2024-01-05

Drop B Counterkit
type: MusicAlbum
date published: 2024-02-02