Hannah Cho
type: MusicGroup
popularity: 2
followers: 335
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa125ba056bbc07ac6e0f7ecc80648cfa86ba51e6a7c2faa0f72e19f4c793b269
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5ac94f7-285e-4e27-b3a4-d44d4a227395.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5ac94f7-285e-4e27-b3a4-d44d4a227395.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e5ac94f7-285e-4e27-b3a4-d44d4a227395
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa125ba056bbc07ac6e0f7ecc80648cfa86ba51e6a7c2faa0f72e19f4c793b269","name":"Hannah Cho","registered_at":"2026-06-21T08:22:12Z","symbol":"NIM1873919","token_address":"0x6f5d73b65e477dccd91af26c7cfe35b1da166992","type":"artist","uuid":"e5ac94f7-285e-4e27-b3a4-d44d4a227395"}
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 0xa125ba056bbc07ac6e0f7ecc80648cfa86ba51e6a7c2faa0f72e19f4c793b269. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5ac94f7-285e-4e27-b3a4-d44d4a227395.json and https://artists.proofprofile.net/proofs/artist/e5ac94f7-285e-4e27-b3a4-d44d4a227395.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xa125ba056bbc07ac6e0f7ecc80648cfa86ba51e6a7c2faa0f72e19f4c793b269","name":"Hannah Cho","registered_at":"2026-06-21T08:22:12Z","symbol":"NIM1873919","token_address":"0x6f5d73b65e477dccd91af26c7cfe35b1da166992","type":"artist","uuid":"e5ac94f7-285e-4e27-b3a4-d44d4a227395"}
album: Like an evergreen tree
  type: MusicAlbum
  date published: 2015-10-23
album: 기억하자 (Let's Remember)
  type: MusicAlbum
  date published: 2018-01-23
album: The One I Choose
  type: MusicAlbum
  date published: 2019-01-25
album: Wait on Me
  type: MusicAlbum
  date published: 2019-12-20
album: Cosmos
  type: MusicAlbum
  date published: 2020-11-27
album: Crossroad
  type: MusicAlbum
  date published: 2021-10-08
album: NOBODY
  type: MusicAlbum
  date published: 2022-04-29
track: Say No More

Say No More
type: MusicRecording
duration: PT3M21S
duration ms: 201288
explicit: false
by artist: Adrian Milanio
by artist: Hannah Cho
in album: Where You Wanna Go
  type: MusicAlbum
  date published: 2020-11-06
isrc code: QZVEM2312455
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:00:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb92f1e60d83be8bfa9ee807532ab236a148dc077acf168b532c1b12d8adaca46
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVEM2312455
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05+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: 957073
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T18:39:05+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 0xb92f1e60d83be8bfa9ee807532ab236a148dc077acf168b532c1b12d8adaca46. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZVEM2312455.
  date published: 2026-07-07T18:50:38Z
audio: Say No More
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.893
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.591
  additional property: Energy
    type: PropertyValue
    value: 0.303
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.583
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.162
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.462
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major