Pith Number

pith:LIB7HPEA

pith:2019:LIB7HPEAPBHCDM3KD53J3ECQUZ

not attested not anchored not stored refs pending

Spatial Variation of the Chemical Properties of Massive Star-forming Clumps

Chunhua Zhu, Donghui Quan, Jarken Esimbek, Jianjun Zhou, Mingyue Li, Qiang Li, Yuxin He

arxiv:1907.10249 v1 · 2019-07-24 · 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{LIB7HPEAPBHCDM3KD53J3ECQUZ}

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	2026-05-17T23:39:38.488717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a03f3bc80784e21b36a1f769d9050a64d495dff0aedd230c2b83fa0fca7dbe1

Aliases

arxiv: 1907.10249 · arxiv_version: 1907.10249v1 · doi: 10.48550/arxiv.1907.10249 · pith_short_12: LIB7HPEAPBHC · pith_short_16: LIB7HPEAPBHCDM3K · pith_short_8: LIB7HPEA

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/LIB7HPEAPBHCDM3KD53J3ECQUZ \
  | 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: 5a03f3bc80784e21b36a1f769d9050a64d495dff0aedd230c2b83fa0fca7dbe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "274d5d0bd70d563a53f70a7b024d1422e42d030b1f8e7a9ceb45c6f96c93021a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-07-24T05:47:59Z",
    "title_canon_sha256": "185b3d2f0b80cab80ec1cbf9ca982458acf7f3762a87473d5c1988010b4bc888"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10249",
    "kind": "arxiv",
    "version": 1
  }
}