Pith Number

pith:NR7UWSI2

pith:2004:NR7UWSI2YTXDWLG7P5EVORWGMS

not attested not anchored not stored refs pending

The Lifetimes and Evolution of Molecular Cloud Cores

(2) Korea Astronomy Observatory, (3) Ferdowsi University), Enrique Vazquez-Semadeni (1), Javier Ballesteros-Paredes (1) ((1) CRyA-UNAM, Jongsoo Kim (2), Mohsen Shadmehri (3)

arxiv:astro-ph/0409247 v1 · 2004-09-10 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NR7UWSI2YTXDWLG7P5EVORWGMS}

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	2026-05-18T02:40:26.189666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c7f4b491ac4ee3b2cdf7f495746c66498218ed5891f436e8ef711b5a4e0d692

Aliases

arxiv: astro-ph/0409247 · arxiv_version: astro-ph/0409247v1 · doi: 10.48550/arxiv.astro-ph/0409247 · pith_short_12: NR7UWSI2YTXD · pith_short_16: NR7UWSI2YTXDWLG7 · pith_short_8: NR7UWSI2

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/NR7UWSI2YTXDWLG7P5EVORWGMS \
  | 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: 6c7f4b491ac4ee3b2cdf7f495746c66498218ed5891f436e8ef711b5a4e0d692

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43aa5122b7ba6fdf4198b34308616252010c9e3ae3e4f266149b21374f6d6b23",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-10T12:51:30Z",
    "title_canon_sha256": "4cc6d05a16ef2653ee65f6b548594d6e3141aa77ba3fce4d70d62859e9f19b8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409247",
    "kind": "arxiv",
    "version": 1
  }
}