Skip to content
Answers

Answers · Read October 7, 2026

A signed Tickerz number can be checked without asking Tickerz.

Each print is a signed report: canonical JSON, its SHA-256 hash, and an Ed25519 signature by the publisher key in tickerz.com/.well-known/tickerz-signer.json. A public recount counts it again and co-signs the same hash. With a matching recount and no dispute, a print becomes final at the first daily oracle run after its 24 hour window closes.

Five checks.

  1. Read the rule: GET https://tickerz.com/api/v1/indices/{ticker}/rule returns the rule, its version and its hash. The rule names the source, the query, how it is counted and the settlement rights.
  2. Read the report: GET https://tickerz.com/api/v1/indices/{ticker}/report (add ?period= for an older one) returns the report as canonical JSON with its hash and signatures.
  3. Check the hash and signature: sha256 of the canonical JSON equals the hash, and the publisher's Ed25519 signature covers "tickerz-report-v1:" followed by the 32 hash bytes. The publisher key is in https://tickerz.com/.well-known/tickerz-signer.json.
  4. Check the recount: the public recount in github.com/tickerzhq/tickerz-open counts the print again from the source and co-signs "tickerz-cosign-v1:" plus the same hash with its own key, also listed in the signer file.
  5. Check the status: a co-signed print with no dispute becomes final at the first oracle run after its window closes: 24 hours for a daily, weekly or monthly print, 2 hours for an hourly one. A correction is a new signed report that names the one it corrects; a print is never edited.

The browser can do it for you.

https://tickerz.com/signed lists every signed number with its status (signed, recounted, final) and a Verify it yourself button that rebuilds the canonical JSON and checks the hash and every signature in the browser.

The daily Close also carries an OpenTimestamps proof in Bitcoin: GET https://tickerz.com/api/v1/indices/proof?day=YYYY-MM-DD returns canonical_json, digest_sha256 and the proof.

Each number is signed by Tickerz and recounted in public. The feed on Solana comes next.

Asked often

How do I check a Tickerz signature?
Hash the report's canonical JSON with SHA-256 and verify the publisher's Ed25519 signature over "tickerz-report-v1:" followed by the 32 hash bytes, against the key in https://tickerz.com/.well-known/tickerz-signer.json.
When is a Tickerz number final?
When the public recount has co-signed it, no dispute was filed and its window has closed (24 hours for a daily, weekly or monthly print, 2 hours for an hourly one): the next oracle run makes it final.
Is the Tickerz oracle on Solana?
Each number is signed by Tickerz and recounted in public. The feed on Solana comes next.

Signed numbersThe oracleMethodologyTrustEvery answer