Pith Number

pith:Q72I76W3

pith:2010:Q72I76W3B5P3DM4DR4HIVL5FUP

not attested not anchored not stored refs pending

The Life of a Free Soap Film

H. C. Mayer, R. Krechetnikov

arxiv:1010.2529 v1 · 2010-10-12 · 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{Q72I76W3B5P3DM4DR4HIVL5FUP}

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	2026-05-18T04:39:27.391844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87f48ffadb0f5fb1b3838f0e8aafa5a3ca8546c4cd49c7e7b5ac2addb0bbefd0

Aliases

arxiv: 1010.2529 · arxiv_version: 1010.2529v1 · doi: 10.48550/arxiv.1010.2529 · pith_short_12: Q72I76W3B5P3 · pith_short_16: Q72I76W3B5P3DM4D · pith_short_8: Q72I76W3

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/Q72I76W3B5P3DM4DR4HIVL5FUP \
  | 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: 87f48ffadb0f5fb1b3838f0e8aafa5a3ca8546c4cd49c7e7b5ac2addb0bbefd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b61dfdd64ed2a33bff397c7bca0852a874a7c21a43f1175d00203adf8e32dbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2010-10-12T22:29:44Z",
    "title_canon_sha256": "5e300a5b8a4e2b7c7034beebd7a458ddae9b63af1d8b5a587fa08cc51920f04c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2529",
    "kind": "arxiv",
    "version": 1
  }
}