Pith Number

pith:PFVRRTXL

pith:2018:PFVRRTXLJGRDIBLXMBPCDUQGWO

not attested not anchored not stored refs pending

A minimal model for predicting ventilation rates of subterranean caves

Darrel Tremaine, Doron Nof, Karina Khazmutdinova, Ming Ye, M.N.J. Moore

arxiv:1808.10478 v1 · 2018-08-30 · physics.geo-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{PFVRRTXLJGRDIBLXMBPCDUQGWO}

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	2026-05-18T00:06:45.569564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

796b18ceeb49a2340577605e21d206b39c07c4cf4cfa059a606ea9e0be1facc9

Aliases

arxiv: 1808.10478 · arxiv_version: 1808.10478v1 · doi: 10.48550/arxiv.1808.10478 · pith_short_12: PFVRRTXLJGRD · pith_short_16: PFVRRTXLJGRDIBLX · pith_short_8: PFVRRTXL

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/PFVRRTXLJGRDIBLXMBPCDUQGWO \
  | 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: 796b18ceeb49a2340577605e21d206b39c07c4cf4cfa059a606ea9e0be1facc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e5444885f0c063cea12a92321dafec7a161d4ad7e91054ad3b08341d32380ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2018-08-30T18:35:24Z",
    "title_canon_sha256": "8a3d697022e0d78150dd5abcbc7ef6bf389041edf3e374f2a8764d220caf0e2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10478",
    "kind": "arxiv",
    "version": 1
  }
}