Pith Number

pith:VNHOEV6I

pith:2025:VNHOEV6IZL4S2V2ZGNYQTWLDFC

not attested not anchored not stored refs pending

Analysis of a one-dimensional biofilm model

Christoph Walker, Patrick Guidotti

arxiv:2505.23545 v1 · 2025-05-29 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VNHOEV6IZL4S2V2ZGNYQTWLDFC}

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	2026-07-05T11:12:03.721364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab4ee257c8caf92d5759337109d96328a481bdc22795fefb44ae75c1d99972ff

Aliases

arxiv: 2505.23545 · arxiv_version: 2505.23545v1 · doi: 10.48550/arxiv.2505.23545 · pith_short_12: VNHOEV6IZL4S · pith_short_16: VNHOEV6IZL4S2V2Z · pith_short_8: VNHOEV6I

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/VNHOEV6IZL4S2V2ZGNYQTWLDFC \
  | 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: ab4ee257c8caf92d5759337109d96328a481bdc22795fefb44ae75c1d99972ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a48dd8e3deea61a28a0659bf61ec1c07fe4a72d51f665bc3e9e1cf8aa5815e90",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2025-05-29T15:23:14Z",
    "title_canon_sha256": "7ee81bf6c4c8ed06a6e4e330653b6b8098b66f687685beaf6fe94edaf7c4f5f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.23545",
    "kind": "arxiv",
    "version": 1
  }
}