Pith Number

pith:N3ZEA72O

pith:2009:N3ZEA72OADJDXNPFZQ6YINNWRC

not attested not anchored not stored refs pending

Anomalous drift of spiral waves in heterogeneous excitable media

Alexander.V. Panfilov, Sitabhra Sinha, S. Sridhar

arxiv:0909.4398 v1 · 2009-09-24 · nlin.PS · physics.bio-ph · q-bio.TO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N3ZEA72OADJDXNPFZQ6YINNWRC}

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	2026-05-18T04:35:57.260938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ef2407f4e00d23bb5e5cc3d8435b68887477f3304ecbead5fb2933f23567f0f

Aliases

arxiv: 0909.4398 · arxiv_version: 0909.4398v1 · doi: 10.48550/arxiv.0909.4398 · pith_short_12: N3ZEA72OADJD · pith_short_16: N3ZEA72OADJDXNPF · pith_short_8: N3ZEA72O

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/N3ZEA72OADJDXNPFZQ6YINNWRC \
  | 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: 6ef2407f4e00d23bb5e5cc3d8435b68887477f3304ecbead5fb2933f23567f0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbcb2160382aa24f5947301d6f6f741bf3d05a4a806be4306aa5bcfc7f3ff3f3",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.TO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.PS",
    "submitted_at": "2009-09-24T09:55:28Z",
    "title_canon_sha256": "3ca61659fea75174a3fe121dfc21d0d528575533706613a458e44be96f3b014f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4398",
    "kind": "arxiv",
    "version": 1
  }
}