ISRC QM42K1911589
Verified recording
QM42K1911589 is “sleeper” by cat soup,
registered on the CopyrightChains blockchain with CopyrightID
0xc81fef9179fce81b4065421940f85d32b04fc61dc55a9f37d2ab61b54946ea78 and independently timestamped
in Bitcoin block 960334 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K1911589.
Recording identifiers
- ISRC
- QM42K1911589
- Title
- sleeper
- Artist
- cat soup
- CopyrightID (CopyrightChains transaction hash)
0xc81fef9179fce81b4065421940f85d32b04fc61dc55a9f37d2ab61b54946ea78
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15+00:00
- Bitcoin block
- 960334
- Canonical record hash
sha256:1a68a22d681f8eb530bfd912df904464ad44e29202159247a55ad14c9f348b57- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K1911589
- Bitcoin block existence check
- https://blockstream.info/api/block/960334