Pith Number

pith:UDFBCVXD

pith:2010:UDFBCVXDC7XGKTJDLZBN6DO35Q

not attested not anchored not stored refs pending

The 35Cl/37Cl isotopic ratio in dense molecular clouds: HIFI observations of hydrogen chloride towards W3A

A. De Jonge, D. Kester, E. Caux, E. Steinmetz, F. Daniel, H.G. LeDuc, J. Cernicharo, J.R. Goicoechea, J. Stutzki, J.S. Ward, M. Agundez, T. de Graauw

arxiv:1005.2729 v1 · 2010-05-16 · 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{UDFBCVXDC7XGKTJDLZBN6DO35Q}

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	2026-05-18T02:07:24.463654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0ca1156e317ee654d235e42df0ddbec148c1673b44bab839f7721a10cf19b85

Aliases

arxiv: 1005.2729 · arxiv_version: 1005.2729v1 · doi: 10.48550/arxiv.1005.2729 · pith_short_12: UDFBCVXDC7XG · pith_short_16: UDFBCVXDC7XGKTJD · pith_short_8: UDFBCVXD

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/UDFBCVXDC7XGKTJDLZBN6DO35Q \
  | 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: a0ca1156e317ee654d235e42df0ddbec148c1673b44bab839f7721a10cf19b85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b34e353270c355f839695b29a42ef38f0bccf08d5c63d8ae8c8da20ba485dde",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-05-16T08:24:57Z",
    "title_canon_sha256": "547c762df081bdef88e9391be08f56cbe8c6cb6470e21ab00704f69f9ace41dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.2729",
    "kind": "arxiv",
    "version": 1
  }
}