Pith Number

pith:K74ZC5A7

pith:2002:K74ZC5A7BMEBGYVBOM76X4WJ5E

not attested not anchored not stored refs pending

Granular segregation as a critical phenomenon

Pedro M. Reis, Tom Mullin

arxiv:cond-mat/0207399 v1 · 2002-07-16 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K74ZC5A7BMEBGYVBOM76X4WJ5E}

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	2026-07-04T16:32:38.547070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57f991741f0b081362a1733febf2c9e920535eec932bfe49159b79e5c407b3e8

Aliases

arxiv: cond-mat/0207399 · arxiv_version: cond-mat/0207399v1 · doi: 10.48550/arxiv.cond-mat/0207399 · pith_short_12: K74ZC5A7BMEB · pith_short_16: K74ZC5A7BMEBGYVB · pith_short_8: K74ZC5A7

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/K74ZC5A7BMEBGYVBOM76X4WJ5E \
  | 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: 57f991741f0b081362a1733febf2c9e920535eec932bfe49159b79e5c407b3e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a29673d1ba6080a45d3d6446d51a84f794c56bbfe2cc261418bc807e67ef97a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2002-07-16T17:16:21Z",
    "title_canon_sha256": "81fb20fb732224eedad9537948969ed43d66980be977040c73a92bc3259a3e20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0207399",
    "kind": "arxiv",
    "version": 1
  }
}