Pith Number

pith:4V6OQPIZ

pith:2018:4V6OQPIZBIYM6XSAT4RWEXT5EA

not attested not anchored not stored refs pending

Diffusion, mixing, and segregation in confined granular flows

Alexander M. Fry, Julio M. Ottino, Paul B. Umbanhowar, Richard M. Lueptow

arxiv:1809.08089 v1 · 2018-09-17 · cond-mat.soft · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4V6OQPIZBIYM6XSAT4RWEXT5EA}

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	2026-05-18T00:05:10.389292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e57ce83d190a30cf5e409f23625e7d201ab50f0597649735758279acfbad9d93

Aliases

arxiv: 1809.08089 · arxiv_version: 1809.08089v1 · doi: 10.48550/arxiv.1809.08089 · pith_short_12: 4V6OQPIZBIYM · pith_short_16: 4V6OQPIZBIYM6XSA · pith_short_8: 4V6OQPIZ

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/4V6OQPIZBIYM6XSAT4RWEXT5EA \
  | 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: e57ce83d190a30cf5e409f23625e7d201ab50f0597649735758279acfbad9d93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d625d485357e5fdb76ddcb387f61d5bc6bbb218197de3d68158139c5c85d9aa7",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2018-09-17T22:37:22Z",
    "title_canon_sha256": "f4c9184f1201c08aad9c7b4e684278861de071dc7f32799aeef520aef457e1dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08089",
    "kind": "arxiv",
    "version": 1
  }
}