ISRC QZFZ72371779
Verified recording
QZFZ72371779 is “pourquoi” by bupropion.,
registered on the CopyrightChains blockchain with CopyrightID
0x72cb37ff0e17018e0f45fba6673482f52e0f17e4538bda423c0f6898cd883e56 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ72371779.
Recording identifiers
- ISRC
- QZFZ72371779
- Title
- pourquoi
- Artist
- bupropion.
- CopyrightID (CopyrightChains transaction hash)
0x72cb37ff0e17018e0f45fba6673482f52e0f17e4538bda423c0f6898cd883e56
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:73a5afccb68573eafa38739ac18ccbc55480e42556dcafd2261cb8714164011d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ72371779
- Bitcoin block existence check
- https://blockstream.info/api/block/956304