Pith Number

pith:YW5EDT4K

pith:2025:YW5EDT4KKNBP6CPPMGE7HOPUTW

not attested not anchored not stored refs pending

Hydrodynamic Theory of Two-dimensional Chiral Malthusian Flocks

Chiu Fan Lee, John Toner, Leiming Chen

arxiv:2507.17762 v2 · 2025-07-08 · cond-mat.soft · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YW5EDT4KKNBP6CPPMGE7HOPUTW}

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	2026-07-05T11:44:10.834207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5ba41cf8a5342ff09ef6189f3b9f49da9711804909aa639ba9d52f7c2c245cb

Aliases

arxiv: 2507.17762 · arxiv_version: 2507.17762v2 · doi: 10.48550/arxiv.2507.17762 · pith_short_12: YW5EDT4KKNBP · pith_short_16: YW5EDT4KKNBP6CPP · pith_short_8: YW5EDT4K

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/YW5EDT4KKNBP6CPPMGE7HOPUTW \
  | 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: c5ba41cf8a5342ff09ef6189f3b9f49da9711804909aa639ba9d52f7c2c245cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b70f709d62e61a91dad4d9d0b2dea916a11ee9ea7a1d2ec1732f2f4cc54d6a4",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2025-07-08T03:06:38Z",
    "title_canon_sha256": "cdd8ecb5130eb79061376a6d6a2540d0bc8a100f934d4d3dd2532d5b5d3203e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.17762",
    "kind": "arxiv",
    "version": 2
  }
}