Pith Number

pith:PQKSPSU6

pith:2009:PQKSPSU6S7TM3EMG7RIK3LE7YQ

not attested not anchored not stored refs pending

A complementary view on the growth of directory trees

Claudio J. Tessone, Frank Schweitzer, Markus M. Geipel

arxiv:0902.1114 v1 · 2009-02-06 · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQKSPSU6S7TM3EMG7RIK3LE7YQ}

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	2026-05-18T02:14:48.997398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c1527ca9e97e6cd9186fc50adac9fc407ec1e32745c7d3c2fbcd0770aa50432

Aliases

arxiv: 0902.1114 · arxiv_version: 0902.1114v1 · doi: 10.48550/arxiv.0902.1114 · pith_short_12: PQKSPSU6S7TM · pith_short_16: PQKSPSU6S7TM3EMG · pith_short_8: PQKSPSU6

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/PQKSPSU6S7TM3EMG7RIK3LE7YQ \
  | 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: 7c1527ca9e97e6cd9186fc50adac9fc407ec1e32745c7d3c2fbcd0770aa50432

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab43a07c53406ff8f34646b1e5a52aa3c7784a82e159f1b7b3c860796d0632c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2009-02-06T15:19:31Z",
    "title_canon_sha256": "bf1166123db6bb268baff7889876b6f7f639a4d01fe12426920d57069c921fad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1114",
    "kind": "arxiv",
    "version": 1
  }
}