Pith Number

pith:QHQRJVJ3

pith:2009:QHQRJVJ3GZCA6GOP6WMC3STXKN

not attested not anchored not stored refs pending

Background-Source Separation in astronomical images with Bayesian probability theory (I): the method

F. Guglielmetti, R. Fischer, V. Dose

arxiv:0903.2342 v1 · 2009-03-13 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHQRJVJ3GZCA6GOP6WMC3STXKN}

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	2026-05-18T02:14:28.556332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81e114d53b36440f19cff5982dca77535370f112b803b9d58e442bd78a3d0224

Aliases

arxiv: 0903.2342 · arxiv_version: 0903.2342v1 · doi: 10.48550/arxiv.0903.2342 · pith_short_12: QHQRJVJ3GZCA · pith_short_16: QHQRJVJ3GZCA6GOP · pith_short_8: QHQRJVJ3

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/QHQRJVJ3GZCA6GOP6WMC3STXKN \
  | 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: 81e114d53b36440f19cff5982dca77535370f112b803b9d58e442bd78a3d0224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e152b0b911f3919560a7fb5e620746cea0949d22eb8cd96b536000589c29906e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-03-13T09:49:54Z",
    "title_canon_sha256": "5a2bb51fd63560f9000e16fefe0b7c11a59a7c2a7adefbfc1cc06722d1325972"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2342",
    "kind": "arxiv",
    "version": 1
  }
}