Pith Number

pith:FPCR3B56

pith:2009:FPCR3B56N25WZKZ4YBN4O3YUIZ

not attested not anchored not stored refs pending

Short-period variability in the Class II methanol maser source G12.89+0.49 (IRAS 18089-1732)

D.J. van der Walt, M.C. Langa, M.J. Gaylard, S. Goedhart

arxiv:0906.0295 v1 · 2009-06-01 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPCR3B56N25WZKZ4YBN4O3YUIZ}

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	2026-05-18T02:13:30.070642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bc51d87be6ebb6cab3cc05bc76f1446612f9a6739a2ebffd2780ee08e0f4873

Aliases

arxiv: 0906.0295 · arxiv_version: 0906.0295v1 · doi: 10.48550/arxiv.0906.0295 · pith_short_12: FPCR3B56N25W · pith_short_16: FPCR3B56N25WZKZ4 · pith_short_8: FPCR3B56

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/FPCR3B56N25WZKZ4YBN4O3YUIZ \
  | 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: 2bc51d87be6ebb6cab3cc05bc76f1446612f9a6739a2ebffd2780ee08e0f4873

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36a4e0a36a9d4b523c5869acb9208b3fb720e87853b4066f17b956a0eed449fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-06-01T14:36:18Z",
    "title_canon_sha256": "29308fb03a2d6aac3a068c66a4ee56704251e6e1a5db1b2585034c58039e524c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0295",
    "kind": "arxiv",
    "version": 1
  }
}