Pith Number

pith:UCMM27U4

pith:2019:UCMM27U4EV2D55RL277WHONVXG

not attested not anchored not stored refs pending

Travelling Corners for Spatially Discrete Reaction-Diffusion System

Hermen Jan Hupkes, Leonardo Morelli

arxiv:1901.02319 v1 · 2019-01-08 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UCMM27U4EV2D55RL277WHONVXG}

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	2026-05-17T23:56:43.590203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a098cd7e9c25743ef62bd7ff63b9b5b9940bc08ea48d07dbf0e93d80001f23a6

Aliases

arxiv: 1901.02319 · arxiv_version: 1901.02319v1 · doi: 10.48550/arxiv.1901.02319 · pith_short_12: UCMM27U4EV2D · pith_short_16: UCMM27U4EV2D55RL · pith_short_8: UCMM27U4

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/UCMM27U4EV2D55RL277WHONVXG \
  | 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: a098cd7e9c25743ef62bd7ff63b9b5b9940bc08ea48d07dbf0e93d80001f23a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba00fdaf3e4074a6bd55fadf2bd8b7a35eeda27e37393869002594f196acdfaf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-01-08T14:23:42Z",
    "title_canon_sha256": "02e131beb853744f6a597928ca9dd6ccb1b2401ad96d112bd2bdd6c76331046f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02319",
    "kind": "arxiv",
    "version": 1
  }
}