Pith Number

pith:4H2JETDM

pith:2021:4H2JETDMOHA7TAXFVGSHITTC54

not attested not anchored not stored refs pending

Topology-driven ordering of flocking matter

Am\'elie Chardac, Denis Bartolo, Luca Giomi, Ludwig A. Hoffmann, Yoann Poupart

arxiv:2103.03861 v1 · 2021-03-05 · 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{4H2JETDMOHA7TAXFVGSHITTC54}

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	2026-07-05T03:19:06.087544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1f4924c6c71c1f982e5a9a4744e62ef0186e64aa0204767e57b1752f5f859b0

Aliases

arxiv: 2103.03861 · arxiv_version: 2103.03861v1 · doi: 10.48550/arxiv.2103.03861 · pith_short_12: 4H2JETDMOHA7 · pith_short_16: 4H2JETDMOHA7TAXF · pith_short_8: 4H2JETDM

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/4H2JETDMOHA7TAXFVGSHITTC54 \
  | 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: e1f4924c6c71c1f982e5a9a4744e62ef0186e64aa0204767e57b1752f5f859b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb310a8b5d82198e01e9079db9e3a3b04cc73344e4aada349ce289718f471f20",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2021-03-05T18:27:10Z",
    "title_canon_sha256": "4dbf6578ce5a352bb4a1cf2be413cea02f02bb0a6274ddb261b4807be19f5d05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.03861",
    "kind": "arxiv",
    "version": 1
  }
}