Pith Number

pith:QOEDGXZV

pith:2014:QOEDGXZVQIR4N7W4OPOBSA4FCS

not attested not anchored not stored refs pending

A proof of anomalous invasion speeds in a system of coupled Fisher-KPP equations

Matt Holzer

arxiv:1409.8641 v2 · 2014-09-30 · 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{QOEDGXZVQIR4N7W4OPOBSA4FCS}

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	2026-05-18T01:36:35.865263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8388335f358223c6fedc73dc19038514bfc19a316f28bc763ef55820bf376ad3

Aliases

arxiv: 1409.8641 · arxiv_version: 1409.8641v2 · doi: 10.48550/arxiv.1409.8641 · pith_short_12: QOEDGXZVQIR4 · pith_short_16: QOEDGXZVQIR4N7W4 · pith_short_8: QOEDGXZV

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/QOEDGXZVQIR4N7W4OPOBSA4FCS \
  | 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: 8388335f358223c6fedc73dc19038514bfc19a316f28bc763ef55820bf376ad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a91fc35edbb23403c3de7e49036b8b41fcd6c0bf9ec06a58bc7f4f368777e31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-09-30T18:10:07Z",
    "title_canon_sha256": "00573b776a0696aecbe34831dd97458b0c0a5d213a67c618be11d95c78345461"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8641",
    "kind": "arxiv",
    "version": 2
  }
}