Pith Number

pith:LUO4HJCU

pith:2012:LUO4HJCUIF4SNWBBNPC5LGVXKZ

not attested not anchored not stored refs pending

Upper limit for the D2H+ ortho-to-para ratio in the prestellar core 16293E (CHESS)

A. Bacmann, C. Ceccarelli, C. Codella, C. Vastel, D.C. Lis, E. Caux, J. A. Beckwith, P. Caselli, T. Ridley

arxiv:1210.0804 v2 · 2012-10-02 · 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{LUO4HJCUIF4SNWBBNPC5LGVXKZ}

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	2026-05-18T01:54:11.517024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d1dc3a454417926d8216bc5d59ab756472c1c2e7bdf120ec4f948168ef133e0

Aliases

arxiv: 1210.0804 · arxiv_version: 1210.0804v2 · doi: 10.48550/arxiv.1210.0804 · pith_short_12: LUO4HJCUIF4S · pith_short_16: LUO4HJCUIF4SNWBB · pith_short_8: LUO4HJCU

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/LUO4HJCUIF4SNWBBNPC5LGVXKZ \
  | 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: 5d1dc3a454417926d8216bc5d59ab756472c1c2e7bdf120ec4f948168ef133e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ee7413d6cab1ecc5df19fa7e16d8968c08f57fc3ba43894e9edeebead4825f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-10-02T15:23:13Z",
    "title_canon_sha256": "7f3bbe2752b96e51b2ea097e02cd8ef857af6f92228d1dbd8468fbf9c40703be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0804",
    "kind": "arxiv",
    "version": 2
  }
}