Pith Number

pith:PEHQRD7Y

pith:2009:PEHQRD7YWBI7IVKPHVVOMPMAXF

not attested not anchored not stored refs pending

Too large and overlooked? Extended free-free emission towards massive star formation regions

(2) University of New South Wales, (3) CRyA, (4) James Cook University), A. J. Walsh (4) ((1) Harvard-Smithsonian Center for Astrophysics, E. Keto (1), M. G. Burton (2), S. Kurtz (3), S. N. Longmore (1), Universidad Nacional Autonoma de Mexico

arxiv:0906.5276 v1 · 2009-06-29 · astro-ph.GA · 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{PEHQRD7YWBI7IVKPHVVOMPMAXF}

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	2026-05-18T02:13:12.015989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

790f088ff8b051f4554f3d6ae63d80b97d15ad5a682949ddb615d6312a7ef7ed

Aliases

arxiv: 0906.5276 · arxiv_version: 0906.5276v1 · doi: 10.48550/arxiv.0906.5276 · pith_short_12: PEHQRD7YWBI7 · pith_short_16: PEHQRD7YWBI7IVKP · pith_short_8: PEHQRD7Y

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/PEHQRD7YWBI7IVKPHVVOMPMAXF \
  | 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: 790f088ff8b051f4554f3d6ae63d80b97d15ad5a682949ddb615d6312a7ef7ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4124284a904fc3fb408aafb651fafabb400443295b48211e1b09b27baa563d5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-06-29T14:20:37Z",
    "title_canon_sha256": "23166bfaef51136367b36bbe9fd3c6b623939dc87cd5ff90a6b85c232d32db07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5276",
    "kind": "arxiv",
    "version": 1
  }
}