Pith Number

pith:74HTEHOO

pith:2003:74HTEHOOHZ7BOBIBKHYBRKAXC5

not attested not anchored not stored refs pending

Chemistry and kinematics of the pre-stellar core L1544: Constraints from H2D+

Antonio Crapsi, Aurore Bacmann, Cecilia Ceccarelli, Floris van der Tak, Malcolm Walmsley, Paola Caselli

arxiv:astro-ph/0311125 v1 · 2003-11-05 · 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{74HTEHOOHZ7BOBIBKHYBRKAXC5}

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	2026-05-18T00:52:34.920374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff0f321dce3e7e17050151f018a817176adc9a574c7c46303fe3e13798201ffb

Aliases

arxiv: astro-ph/0311125 · arxiv_version: astro-ph/0311125v1 · doi: 10.48550/arxiv.astro-ph/0311125 · pith_short_12: 74HTEHOOHZ7B · pith_short_16: 74HTEHOOHZ7BOBIB · pith_short_8: 74HTEHOO

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/74HTEHOOHZ7BOBIBKHYBRKAXC5 \
  | 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: ff0f321dce3e7e17050151f018a817176adc9a574c7c46303fe3e13798201ffb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c92da7abfb9e478c46045ff29565a098b7e90f59bfd7ee4813c9681698cf724",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-05T15:25:20Z",
    "title_canon_sha256": "eea8d27a173ee00d610fa064d8dfc6fd017c8253e37ce6ad7888348a8c040965"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311125",
    "kind": "arxiv",
    "version": 1
  }
}