ISRC USUM70740355
Verified recording
USUM70740355 is “So Long Goodbye” by Sum 41,
registered on the CopyrightChains blockchain with CopyrightID
0x3b3dba4270e864ceaab97047943053ff7b3005d694dfc7f26da7df225c9e4d1a and independently timestamped
in Bitcoin block 953513 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70740355.
Recording identifiers
- ISRC
- USUM70740355
- Title
- So Long Goodbye
- Artist
- Sum 41
- CopyrightID (CopyrightChains transaction hash)
0x3b3dba4270e864ceaab97047943053ff7b3005d694dfc7f26da7df225c9e4d1a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:47:07+00:00
- Bitcoin block
- 953513
- Canonical record hash
sha256:f2b18dfc4c95c6a8c74ad7f2e8d581f21f9584eaf06ddd96d012b75339f7b73a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM70740355
- Bitcoin block existence check
- https://blockstream.info/api/block/953513