Pith Number

pith:SD5JP4WX

pith:2009:SD5JP4WXE7CACU7EM6AXTG56DG

not attested not anchored not stored refs pending

A Search for Infall Evidence in EGOs I: the Northern Sample

Jing-Jing Li, Jin-hua He, Xi Chen, Ye Xu, Zhi-Qiang Shen

arxiv:0912.3631 v1 · 2009-12-18 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SD5JP4WXE7CACU7EM6AXTG56DG}

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	2026-05-18T02:33:56.019645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90fa97f2d727c40153e46781799bbe19a5b61e3e68e98173de21cc239ce71564

Aliases

arxiv: 0912.3631 · arxiv_version: 0912.3631v1 · doi: 10.48550/arxiv.0912.3631 · pith_short_12: SD5JP4WXE7CA · pith_short_16: SD5JP4WXE7CACU7E · pith_short_8: SD5JP4WX

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/SD5JP4WXE7CACU7EM6AXTG56DG \
  | 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: 90fa97f2d727c40153e46781799bbe19a5b61e3e68e98173de21cc239ce71564

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d784a1f40b99906da5487966fb7a16ae67b1d31f89ef948ed0e7127537893014",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-18T10:31:28Z",
    "title_canon_sha256": "ae19905441181128dcc7f553401847421fff8e91c306b9a9ad8999bbd836e087"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3631",
    "kind": "arxiv",
    "version": 1
  }
}