Pith Number

pith:7RQ2X6MH

pith:2015:7RQ2X6MHJFHGYUKEHE5EZUODII

not attested not anchored not stored refs pending

Flow rate of polygonal grains through a bottleneck: Interplay between shape and size

C. Manuel Carlevaro, Ezequiel Goldberg, Luis A. Pugnaloni

arxiv:1505.05774 v1 · 2015-05-21 · 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{7RQ2X6MHJFHGYUKEHE5EZUODII}

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	2026-05-18T02:03:53.534593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc61abf987494e6c5144393a4cd1c34230675a5c3baa53d526a3d1e8ddcd4bbc

Aliases

arxiv: 1505.05774 · arxiv_version: 1505.05774v1 · doi: 10.48550/arxiv.1505.05774 · pith_short_12: 7RQ2X6MHJFHG · pith_short_16: 7RQ2X6MHJFHGYUKE · pith_short_8: 7RQ2X6MH

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/7RQ2X6MHJFHGYUKEHE5EZUODII \
  | 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: fc61abf987494e6c5144393a4cd1c34230675a5c3baa53d526a3d1e8ddcd4bbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd2cd0abc51b90fbe537efe1f991595f2233e32b30608ba2830b3aa60258870a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2015-05-21T15:43:57Z",
    "title_canon_sha256": "872a65ef7de2cb5238016b175268b59f3af205340b5b6955c8365aa214b2449e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05774",
    "kind": "arxiv",
    "version": 1
  }
}