Pith Number

pith:P2PQGBHL

pith:2019:P2PQGBHLCEUCXTZTREWPKFXBGH

not attested not anchored not stored refs pending

Opacity calculations for stellar astrophysics

Franck Gilleron, Jean-Christophe Pain

arxiv:1901.08959 v1 · 2019-01-24 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2PQGBHLCEUCXTZTREWPKFXBGH}

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.

Cited by

1 paper in Pith

The chemical make-up of the Sun: A 2020 vision

Receipt and verification

First computed	2026-05-17T23:47:39.455434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e9f0304eb11282bcf33892cf516e131d8930da9b546c25d84ee13b3f05af4ce

Aliases

arxiv: 1901.08959 · arxiv_version: 1901.08959v1 · doi: 10.48550/arxiv.1901.08959 · pith_short_12: P2PQGBHLCEUC · pith_short_16: P2PQGBHLCEUCXTZT · pith_short_8: P2PQGBHL

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/P2PQGBHLCEUCXTZTREWPKFXBGH \
  | 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: 7e9f0304eb11282bcf33892cf516e131d8930da9b546c25d84ee13b3f05af4ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e588f571fab195ecf430b5314381b32e7752b01de23827361566f329e51e27c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-24T16:56:25Z",
    "title_canon_sha256": "dc2ac2587c09c92932933fcd1ca6bae7ba0a5097b715f82ae0005dbcd0356f66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08959",
    "kind": "arxiv",
    "version": 1
  }
}