Pith Number

pith:YMN7RZQZ

pith:2010:YMN7RZQZDY6EFSNEZFWTTWCYFF

not attested not anchored not stored refs pending

The initial stages of cave formation: Beyond the one-dimensional paradigm

Anthony J.C. Ladd, Piotr Szymczak

arxiv:1011.4111 v1 · 2010-11-18 · 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{YMN7RZQZDY6EFSNEZFWTTWCYFF}

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	2026-05-18T04:35:46.632139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c31bf8e6191e3c42c9a4c96d39d858297250f574bf5afe177348682d24895619

Aliases

arxiv: 1011.4111 · arxiv_version: 1011.4111v1 · doi: 10.48550/arxiv.1011.4111 · pith_short_12: YMN7RZQZDY6E · pith_short_16: YMN7RZQZDY6EFSNE · pith_short_8: YMN7RZQZ

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/YMN7RZQZDY6EFSNEZFWTTWCYFF \
  | 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: c31bf8e6191e3c42c9a4c96d39d858297250f574bf5afe177348682d24895619

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b36111010e54cce7c0b72d5cf38b4e072b947c964b1827727c5a8fa70769360",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2010-11-18T00:07:44Z",
    "title_canon_sha256": "27d751e2d702090dc35c245b84e4ef48d23915119f814fd59a8f20aea706817f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4111",
    "kind": "arxiv",
    "version": 1
  }
}