ISRC QZHZ31912100
Verified recording
QZHZ31912100 is “Um Só” by Mário Wamser,
registered on the CopyrightChains blockchain with CopyrightID
0x0330f4b76976b869bd86303d13580d4fc038e8f2d166011e78a6519c3c296117 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/QZHZ31912100.
Recording identifiers
- ISRC
- QZHZ31912100
- Title
- Um Só
- Artist
- Mário Wamser
- CopyrightID (CopyrightChains transaction hash)
0x0330f4b76976b869bd86303d13580d4fc038e8f2d166011e78a6519c3c296117
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:61ad49837bf453357371b17e5ff1794c95a008b9c252be97e322bd8a651b2c43- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ31912100
- Bitcoin block existence check
- https://blockstream.info/api/block/957118