Pith Number

pith:L4PYVHQF

pith:2012:L4PYVHQFPGDB66543G4HWKB4P5

not attested not anchored not stored refs pending

At the end of a moving string

C. D. Santangelo, J. A. Hanna

arxiv:1209.1332 v2 · 2012-09-06 · physics.flu-dyn · physics.class-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{L4PYVHQFPGDB66543G4HWKB4P5}

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	2026-05-18T03:25:16.203155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f1f8a9e0579861f7bbcd9b87b283c7f5b38741a1e20d8bff383323f2d578b68

Aliases

arxiv: 1209.1332 · arxiv_version: 1209.1332v2 · doi: 10.48550/arxiv.1209.1332 · pith_short_12: L4PYVHQFPGDB · pith_short_16: L4PYVHQFPGDB6654 · pith_short_8: L4PYVHQF

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/L4PYVHQFPGDB66543G4HWKB4P5 \
  | 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: 5f1f8a9e0579861f7bbcd9b87b283c7f5b38741a1e20d8bff383323f2d578b68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0b93bedd0b4c1dd3a2528b2bc0fba0cdb99538ac0a12094e5737bea43bd0dde",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2012-09-06T16:25:53Z",
    "title_canon_sha256": "46d59b203b8f891c0e3bececb016267588f0bffe350c439205959d48e75ea84b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1332",
    "kind": "arxiv",
    "version": 2
  }
}