A permanent, append-only record of when a piece of music existed.
Where a record states how AI was used, or why a correction was made, it cites a published scheme by id and says nothing more — the meaning lives in that document. The documents are frozen and checksummed, so the one you read today is the one the record committed to. They carry the record format's licence too.
Published now, before there is anything to check, because the promise is that you can verify a record without our help — and a promise you can only read about afterwards is worth less than one you can read about first.
1. Download the file the record describes.
2. Run: sha256sum yourfile.wav
3. Compare the digest to the one printed on the record.
Identical means these are the same bytes.
4. Where a record carries anchors, its date can be checked against
parties who have never heard of us. A record without them says so:
OpenTimestamps ots verify -d <root> record.ots
resolves to a Bitcoin block header; it
needs a Bitcoin node to read it.
RFC 3161 openssl ts -verify -digest <root> -in record.tsr
-CAfile tsa-chain.pem
the record carries the authority's signing
certificate; the chain up to its root comes
from the authority.
The same steps, automated. It is one file, it has no dependencies, and it reads only files you already have — so it keeps working if this site does not.
curl -O https://songseal.org/verify.mjs node verify.mjs record.json yourfile.wav
Two honest limits. This copy is served by the same host that serves the records, so it is a convenience, not an independent check — the standard commands above owe us nothing and are the stronger path. And for anchors the checker prints the external commands to run rather than reaching a verdict of its own, because our verdict about our own dates would be worth nothing.
A record proves this exact file existed by this date and has not changed since. It does not prove authorship, it is not a copyright registration, and nobody here reviews it. A single seal is weak evidence; the trail of seals across time is the evidence.