Pith Number

pith:7FC4E433

pith:2015:7FC4E433I7FXR6DLRQO7DHGSQJ

not attested not anchored not stored refs pending

Bill2d - a software package for classical two-dimensional Hamiltonian systems

Esa R\"as\"anen, Janne Solanp\"a\"a, Perttu Luukko

arxiv:1506.06917 v3 · 2015-06-23 · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FC4E433I7FXR6DLRQO7DHGSQJ}

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	2026-05-18T01:20:19.064978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f945c2737b47cb78f86b8c1df19cd2824e7f11a5b828a8cadc2c7806ec427c30

Aliases

arxiv: 1506.06917 · arxiv_version: 1506.06917v3 · doi: 10.48550/arxiv.1506.06917 · pith_short_12: 7FC4E433I7FX · pith_short_16: 7FC4E433I7FXR6DL · pith_short_8: 7FC4E433

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/7FC4E433I7FXR6DLRQO7DHGSQJ \
  | 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: f945c2737b47cb78f86b8c1df19cd2824e7f11a5b828a8cadc2c7806ec427c30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26b03f4c2e2edffe1eb30cfab62b2b1ba03455796b2f2ac8b51f3f05fa17465f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2015-06-23T09:14:02Z",
    "title_canon_sha256": "b72d33d4da356baf9fe50bf4ae1041c6ba940e71fb65a68687f255bcc2406c17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06917",
    "kind": "arxiv",
    "version": 3
  }
}