Pith Number

pith:IYSIP5H7

pith:2012:IYSIP5H7PEO5XDSFCSRQKDZLTV

not attested not anchored not stored refs pending

Fragmentation and Evolution of Molecular Clouds. III: The Effect of Dust and Gas Energetics

Andrea Urban, Hugo Martel, Neal J. Evans II

arxiv:1207.6989 v1 · 2012-07-30 · astro-ph.SR · 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{IYSIP5H7PEO5XDSFCSRQKDZLTV}

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	2026-05-18T01:56:06.011791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

462487f4ff791ddb8e4514a3050f2b9d4f8dea00c3ae9693c0c5c91163b0bfe5

Aliases

arxiv: 1207.6989 · arxiv_version: 1207.6989v1 · doi: 10.48550/arxiv.1207.6989 · pith_short_12: IYSIP5H7PEO5 · pith_short_16: IYSIP5H7PEO5XDSF · pith_short_8: IYSIP5H7

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/IYSIP5H7PEO5XDSFCSRQKDZLTV \
  | 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: 462487f4ff791ddb8e4514a3050f2b9d4f8dea00c3ae9693c0c5c91163b0bfe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8345190c1b7e55fdddde370d5ced19000128fd9caf3f2841da7765a8570fa62",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-30T16:24:16Z",
    "title_canon_sha256": "6e4c852fa437155489ddbf94d097a1d2aa9805ad908ac0a1d29944f83f0ca509"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6989",
    "kind": "arxiv",
    "version": 1
  }
}