Pith Number

pith:PH4IGCSN

pith:2025:PH4IGCSNIOFXGOWSR7GDKYNVPV

not attested not anchored not stored refs pending

The seed-carrying stalk of the linden diaspore ensures autorotating flight

Andreas Carlson, Annette Cazaubiel

arxiv:2508.05106 v1 · 2025-08-07 · physics.bio-ph · 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{PH4IGCSNIOFXGOWSR7GDKYNVPV}

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	2026-07-05T11:50:07.221506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79f8830a4d438b733ad28fcc3561b57d7e2580ddb221e9ae81eb8863671b4e37

Aliases

arxiv: 2508.05106 · arxiv_version: 2508.05106v1 · doi: 10.48550/arxiv.2508.05106 · pith_short_12: PH4IGCSNIOFX · pith_short_16: PH4IGCSNIOFXGOWS · pith_short_8: PH4IGCSN

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/PH4IGCSNIOFXGOWSR7GDKYNVPV \
  | 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: 79f8830a4d438b733ad28fcc3561b57d7e2580ddb221e9ae81eb8863671b4e37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfd1719210a2ffa72cf51de913c83339f806cf43e357f59404cfcf8ad927af09",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2025-08-07T07:41:52Z",
    "title_canon_sha256": "6668efaab8305cc2da597bd7e8fa5a99f0199f81a115f8fd397588ee6475038e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.05106",
    "kind": "arxiv",
    "version": 1
  }
}