Pith Number

pith:R7KM77TR

pith:2014:R7KM77TRUT5YGS3KEREXWK5KA5

not attested not anchored not stored refs pending

Chemical evolution in the early phases of massive star formation. I

D. Semenov, H. Beuther, H. Linz, S. Bihr, T. Gerner, Th. Henning, T. Vasyunina, Y. L. Shirley

arxiv:1401.6382 v2 · 2014-01-24 · astro-ph.SR · 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{R7KM77TRUT5YGS3KEREXWK5KA5}

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	2026-05-18T02:56:06.280003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fd4cffe71a4fb834b6a24497b2baa0751a6a6bcc8a3b36c1dc389cde818cdb6

Aliases

arxiv: 1401.6382 · arxiv_version: 1401.6382v2 · doi: 10.48550/arxiv.1401.6382 · pith_short_12: R7KM77TRUT5Y · pith_short_16: R7KM77TRUT5YGS3K · pith_short_8: R7KM77TR

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/R7KM77TRUT5YGS3KEREXWK5KA5 \
  | 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: 8fd4cffe71a4fb834b6a24497b2baa0751a6a6bcc8a3b36c1dc389cde818cdb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f8f3e0f31f1e453e4330e0b9c52e185bee644f5da48c5e4ec045fc808592207",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-01-24T15:45:36Z",
    "title_canon_sha256": "0014ed7bc4d5d80f1e018eb73387518e75dd9d98c7cdd5ec588e911791c9ea72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6382",
    "kind": "arxiv",
    "version": 2
  }
}