Pith Number

pith:UIRDYVQM

pith:2017:UIRDYVQM2LC3XKQ2RQCDYBEJJJ

not attested not anchored not stored refs pending

Jammed systems of oriented needles always percolate on square lattices

Grzegorz Kondrat, Piotr Brzeski, Zbigniew Koza

arxiv:1706.02550 v1 · 2017-06-08 · 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{UIRDYVQM2LC3XKQ2RQCDYBEJJJ}

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	2026-05-18T00:35:58.631431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2223c560cd2c5bbaa1a8c043c04894a58156ceae2135e5e9d7147216ff0a84c

Aliases

arxiv: 1706.02550 · arxiv_version: 1706.02550v1 · doi: 10.48550/arxiv.1706.02550 · pith_short_12: UIRDYVQM2LC3 · pith_short_16: UIRDYVQM2LC3XKQ2 · pith_short_8: UIRDYVQM

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/UIRDYVQM2LC3XKQ2RQCDYBEJJJ \
  | 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: a2223c560cd2c5bbaa1a8c043c04894a58156ceae2135e5e9d7147216ff0a84c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fed4d69464311f02e9b1746d5a5d78961632d6648f238445a68c26474cc6d34a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2017-06-08T12:46:38Z",
    "title_canon_sha256": "3d9e8f7a016f0663015e3357e1cbfdd9d1ddcc1e24372af2c0edc138cd5563df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02550",
    "kind": "arxiv",
    "version": 1
  }
}