Pith Number

pith:IGQJ6D5N

pith:2013:IGQJ6D5NMQW54F5O2IPHDBX6EQ

not attested not anchored not stored refs pending

On the shape of a lightweight drop on a horizontal plane

Amir H. Fatollahi

arxiv:1303.1894 v1 · 2013-03-08 · math-ph · math.MP · 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{IGQJ6D5NMQW54F5O2IPHDBX6EQ}

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	2026-05-18T03:31:32.033950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41a09f0fad642dde17aed21e7186fe2400a2b1034eb35378acf6079d32808e23

Aliases

arxiv: 1303.1894 · arxiv_version: 1303.1894v1 · doi: 10.48550/arxiv.1303.1894 · pith_short_12: IGQJ6D5NMQW5 · pith_short_16: IGQJ6D5NMQW54F5O · pith_short_8: IGQJ6D5N

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/IGQJ6D5NMQW54F5O2IPHDBX6EQ \
  | 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: 41a09f0fad642dde17aed21e7186fe2400a2b1034eb35378acf6079d32808e23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ed5f3e2d844b1b94d19b012c3fc991315bbcc67c8974a8016d78018f9b89c0a",
    "cross_cats_sorted": [
      "math.MP",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-03-08T06:58:52Z",
    "title_canon_sha256": "16ad4f7affb3381aaf725e291f9f5c9b72dfa33d7bb720385fde68490db5548e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1894",
    "kind": "arxiv",
    "version": 1
  }
}