ISRC USBB10100831
Verified recording
USBB10100831 is “Gloomy Sunday” by Laszlo Javor,
registered on the CopyrightChains blockchain with CopyrightID
0x77c54e17d8d0335133967c1f1bce233208e3b6b6e3407de89ea729a41f6db542 and independently timestamped
in Bitcoin block 960370 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBB10100831.
Recording identifiers
- ISRC
- USBB10100831
- Title
- Gloomy Sunday
- Artist
- Laszlo Javor
- CopyrightID (CopyrightChains transaction hash)
0x77c54e17d8d0335133967c1f1bce233208e3b6b6e3407de89ea729a41f6db542
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:38:45+00:00
- Bitcoin block
- 960370
- Canonical record hash
sha256:8fd7ed7c7bee079a58742a868ac024b12086c00faf2a71cf2e3cb45dbd0a8b76- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBB10100831
- Bitcoin block existence check
- https://blockstream.info/api/block/960370