Pith Number

pith:GUVFCALJ

pith:2013:GUVFCALJSRA67P6IRWO2EEIJWJ

not attested not anchored not stored refs pending

How river rocks round: resolving the shape-size paradox

A.\'A. Sipos, \'A. T\"or\"ok, D. J. Jerolmack, G. Domokos

arxiv:1311.6574 v2 · 2013-11-26 · 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{GUVFCALJSRA67P6IRWO2EEIJWJ}

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	2026-05-18T02:57:08.050190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

352a5101699441efbfc88d9da21109b25966957fc7545312c42a0596a080ab69

Aliases

arxiv: 1311.6574 · arxiv_version: 1311.6574v2 · doi: 10.48550/arxiv.1311.6574 · pith_short_12: GUVFCALJSRA6 · pith_short_16: GUVFCALJSRA67P6I · pith_short_8: GUVFCALJ

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/GUVFCALJSRA67P6IRWO2EEIJWJ \
  | 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: 352a5101699441efbfc88d9da21109b25966957fc7545312c42a0596a080ab69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fffccfa7f3d93f3edd64e0f9540d0bd94897149f255c07b8472f7e892eda150",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2013-11-26T07:45:49Z",
    "title_canon_sha256": "0b43dce9c4a93acca8ff9138a173f2619c60c69985c971c83fe0e522f2657741"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.6574",
    "kind": "arxiv",
    "version": 2
  }
}