Pith Number

pith:ZWCADWCF

pith:2017:ZWCADWCFHC6G4CGYDD3IQP335Z

not attested not anchored not stored refs pending

Topological Sound and Flocking on Curved Surfaces

Mark J. Bowick, M. Cristina Marchetti, Suraj Shankar

arxiv:1704.05424 v3 · 2017-04-18 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZWCADWCFHC6G4CGYDD3IQP335Z}

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	2026-05-18T00:35:16.288180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd8401d84538bc6e08d818f6883f7bee414dcd771ce633100a9764242c647740

Aliases

arxiv: 1704.05424 · arxiv_version: 1704.05424v3 · doi: 10.48550/arxiv.1704.05424 · pith_short_12: ZWCADWCFHC6G · pith_short_16: ZWCADWCFHC6G4CGY · pith_short_8: ZWCADWCF

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/ZWCADWCFHC6G4CGYDD3IQP335Z \
  | 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: cd8401d84538bc6e08d818f6883f7bee414dcd771ce633100a9764242c647740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "333a1c3f66238015cd933547854807084b26f5d2e45e9ab1c2d0b9e4f43800cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2017-04-18T17:05:24Z",
    "title_canon_sha256": "3e7460f2d6d3121d487ca9e582a6f31e3dc7e1822200bf103432e278b3e4a9b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05424",
    "kind": "arxiv",
    "version": 3
  }
}