Pith Number

pith:TT7KUY5T

pith:2025:TT7KUY5TLES47UH4JW2WXOWBSX

not attested not anchored not stored refs pending

The Chemical Clock of High-mass Star-forming Regions: N2H+/CCS

D. Y. Wei, H. Z. Yu, J. L. Chen, J. S. Zhang, J. X. Ge, X. Y. Wang, Y. P. Zou, Y. T. Yan, Y. X. Wang

arxiv:2505.23221 v1 · 2025-05-29 · 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{TT7KUY5TLES47UH4JW2WXOWBSX}

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	2026-07-05T11:11:57.775564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cfeaa63b35925cfd0fc4db56bbac195e7028929e362d0fc20cfbf3a35480c26

Aliases

arxiv: 2505.23221 · arxiv_version: 2505.23221v1 · doi: 10.48550/arxiv.2505.23221 · pith_short_12: TT7KUY5TLES4 · pith_short_16: TT7KUY5TLES47UH4 · pith_short_8: TT7KUY5T

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/TT7KUY5TLES47UH4JW2WXOWBSX \
  | 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: 9cfeaa63b35925cfd0fc4db56bbac195e7028929e362d0fc20cfbf3a35480c26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4746cf98691c6500573f384919edcadbc7bf1b73e45d8f10375a90304e51f1ce",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-05-29T08:05:27Z",
    "title_canon_sha256": "f8649f6620c09be883c1fea642d8331a9b451f5bc45d1b965a559d3ca8edaf30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.23221",
    "kind": "arxiv",
    "version": 1
  }
}