Pith Number

pith:VIQQ7JPC

pith:2009:VIQQ7JPCMIZRH7OIIWR6GFZOHH

not attested not anchored not stored refs pending

Computation of the Drift Velocity of Spiral Waves using Response Functions

A. J. Foulkes, D. Barkley, I. V. Biktasheva, V. N. Biktashev

arxiv:0909.5372 v2 · 2009-09-29 · nlin.PS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VIQQ7JPCMIZRH7OIIWR6GFZOHH}

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	2026-05-18T02:11:36.407223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa210fa5e2623313fdc845a3e3172e39fb5c725f48289096ffa0c1d9b16b00c6

Aliases

arxiv: 0909.5372 · arxiv_version: 0909.5372v2 · doi: 10.48550/arxiv.0909.5372 · pith_short_12: VIQQ7JPCMIZR · pith_short_16: VIQQ7JPCMIZRH7OI · pith_short_8: VIQQ7JPC

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/VIQQ7JPCMIZRH7OIIWR6GFZOHH \
  | 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: aa210fa5e2623313fdc845a3e3172e39fb5c725f48289096ffa0c1d9b16b00c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "453328c16c5d47371e354c5061b810e7bd0681bf4b5ede58fff756965b3fd1c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.PS",
    "submitted_at": "2009-09-29T15:53:48Z",
    "title_canon_sha256": "3bd4f4c87e42ae64c5687a94643bd8ee49e17cdbb44cca573b3cbe9268f6fabc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5372",
    "kind": "arxiv",
    "version": 2
  }
}