ISRC GBUM70805375
Verified recording
GBUM70805375 is “Speak Low” by Roy Hargrove,
registered on the CopyrightChains blockchain with CopyrightID
0x4d328ed90e081e6849bdfa3341d1e3748d16ce8ba4a45ecc2e34115a479d9a01 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70805375.
Recording identifiers
- ISRC
- GBUM70805375
- Title
- Speak Low
- Artist
- Roy Hargrove
- CopyrightID (CopyrightChains transaction hash)
0x4d328ed90e081e6849bdfa3341d1e3748d16ce8ba4a45ecc2e34115a479d9a01
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:5e3eff1c279e62fd412aa2ebd363a72e04e90804b7e2ed9e5a53a2a89e48637d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70805375
- Bitcoin block existence check
- https://blockstream.info/api/block/957118