Pith Number

pith:YAPFVLBQ

pith:2011:YAPFVLBQMRN5B4RXIWMNQP7TFO

not attested not anchored not stored refs pending

Explicit Integration of Extremely-Stiff Reaction Networks: Asymptotic Methods

E. Feger, E. McMahon, J. J. Billings, K. J. Roche, M. He, M. W. Guidry, O. E. B. Messer, R. Budiardja, W. R. Hix

arxiv:1112.4716 v2 · 2011-12-20 · astro-ph.SR · physics.comp-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YAPFVLBQMRN5B4RXIWMNQP7TFO}

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	2026-05-18T01:10:18.776720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c01e5aac30645bd0f2374598d83ff32bb4c0f5e12e2f3645898f0c1b0cb6b918

Aliases

arxiv: 1112.4716 · arxiv_version: 1112.4716v2 · doi: 10.48550/arxiv.1112.4716 · pith_short_12: YAPFVLBQMRN5 · pith_short_16: YAPFVLBQMRN5B4RX · pith_short_8: YAPFVLBQ

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/YAPFVLBQMRN5B4RXIWMNQP7TFO \
  | 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: c01e5aac30645bd0f2374598d83ff32bb4c0f5e12e2f3645898f0c1b0cb6b918

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06f28221134e0e3a69f15e004d6017aefd1f97a4cbd316addf79178319963da1",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-20T15:02:08Z",
    "title_canon_sha256": "572236cc0b4c8ffc259977fbefc4f56ed789e21049d9bfca7ae71bb318148ba8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4716",
    "kind": "arxiv",
    "version": 2
  }
}