Pith Number

pith:UPQUQ3SP

pith:2002:UPQUQ3SPFLMB7NYJI32DJ32NUJ

not attested not anchored not stored refs pending

A Distributed Control System for Rapid Astronomical Transient Detection

D. Casperson, D. Starr, J. Wren, K. Borozdin, K. McGowan, M. Galassi, P. Wozniak, R. White, S. Brumby, W. T. Vestrand

arxiv:astro-ph/0209477 v1 · 2002-09-23 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UPQUQ3SPFLMB7NYJI32DJ32NUJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:40:42.172145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3e1486e4f2ad81fb70946f434ef4da27e0882f97fc3597464af6ac4771a94b1

Aliases

arxiv: astro-ph/0209477 · arxiv_version: astro-ph/0209477v1 · doi: 10.48550/arxiv.astro-ph/0209477 · pith_short_12: UPQUQ3SPFLMB · pith_short_16: UPQUQ3SPFLMB7NYJ · pith_short_8: UPQUQ3SP

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UPQUQ3SPFLMB7NYJI32DJ32NUJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a3e1486e4f2ad81fb70946f434ef4da27e0882f97fc3597464af6ac4771a94b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97fbb06f88ecd2248d919301b40f045a18a4744b84cc4bb5d5760f4c1ec06253",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-23T18:26:56Z",
    "title_canon_sha256": "2a364afb0d012cf9c263a07b1c6e6f0d390bec9001bd34fd823ff38f9170f15b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209477",
    "kind": "arxiv",
    "version": 1
  }
}