Pith Number

pith:JKHUNSUZ

pith:1997:JKHUNSUZTS6IHALY7SPZ4BUBA7

not attested not anchored not stored refs pending

How long does it take for heat to flow through the sun?

B. Ricci, G. Fiorentini

arxiv:astro-ph/9702133 v1 · 1997-02-14 · astro-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{JKHUNSUZTS6IHALY7SPZ4BUBA7}

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	2026-07-04T14:15:03.678795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a8f46ca999cbc838178fc9f9e068107f27eb60c29f797ce7068d76ab7c344cd

Aliases

arxiv: astro-ph/9702133 · arxiv_version: astro-ph/9702133v1 · doi: 10.48550/arxiv.astro-ph/9702133 · pith_short_12: JKHUNSUZTS6I · pith_short_16: JKHUNSUZTS6IHALY · pith_short_8: JKHUNSUZ

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/JKHUNSUZTS6IHALY7SPZ4BUBA7 \
  | 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: 4a8f46ca999cbc838178fc9f9e068107f27eb60c29f797ce7068d76ab7c344cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4f26223ca8c86b4112ce38555b9237241f3a5284b24e924c5c588460b949342",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-02-14T18:44:07Z",
    "title_canon_sha256": "71c2b02149fae1504be8bf59b4b45bf1f54fc6f3efdfacaf3c27f511a9f63ce0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9702133",
    "kind": "arxiv",
    "version": 1
  }
}