Pith Number

pith:HLKC37XA

pith:2018:HLKC37XAWCVXU7SRMQKCMCG2EH

not attested not anchored not stored refs pending

Depletion of 15N in the center of L1544: Early transition from atomic to molecular nitrogen?

Kenji Furuya, Satoshi Yamamoto, Takeshi Sakai, Yoshimasa Watanabe, Yuri Aikawa

arxiv:1807.05480 v1 · 2018-07-15 · 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{HLKC37XAWCVXU7SRMQKCMCG2EH}

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	2026-05-18T00:08:38.111289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ad42dfee0b0ab7a7e5164142608da21c3f1284b31d24c4d572673598630194d

Aliases

arxiv: 1807.05480 · arxiv_version: 1807.05480v1 · doi: 10.48550/arxiv.1807.05480 · pith_short_12: HLKC37XAWCVX · pith_short_16: HLKC37XAWCVXU7SR · pith_short_8: HLKC37XA

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/HLKC37XAWCVXU7SRMQKCMCG2EH \
  | 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: 3ad42dfee0b0ab7a7e5164142608da21c3f1284b31d24c4d572673598630194d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6340cd6251853d3856822e3f650d0042283bc87a0b63fde34d8a8478a7b1c432",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-15T02:51:27Z",
    "title_canon_sha256": "c02f21e555dfa257c3cb2dfe323420f2b51f402beac7c631de0d6418a9ad1e37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05480",
    "kind": "arxiv",
    "version": 1
  }
}