Pith Number

pith:H2PKYFWQ

pith:2018:H2PKYFWQTGXSZIYMJ2ONCCRA2Z

not attested not anchored not stored refs pending

Optimal time delays in a class of reaction-diffusion equations

Eduardo Casas, Fredi Tr\"oltzsch, Mariano Mateos

arxiv:1805.01914 v1 · 2018-05-04 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H2PKYFWQTGXSZIYMJ2ONCCRA2Z}

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	2026-05-18T00:05:31.287328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e9eac16d099af2ca30c4e9cd10a20d6748e224c83691a5aa49188fd97470ffc

Aliases

arxiv: 1805.01914 · arxiv_version: 1805.01914v1 · doi: 10.48550/arxiv.1805.01914 · pith_short_12: H2PKYFWQTGXS · pith_short_16: H2PKYFWQTGXSZIYM · pith_short_8: H2PKYFWQ

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/H2PKYFWQTGXSZIYMJ2ONCCRA2Z \
  | 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: 3e9eac16d099af2ca30c4e9cd10a20d6748e224c83691a5aa49188fd97470ffc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d2be1f6b254b9d551662bb5f891356ea6fdb187e1a1a3b0c98d459c87dddd11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-05-04T19:00:27Z",
    "title_canon_sha256": "16d150b0fd954e8244e2559880d8bb55e6f01adbc263f5e4100e35154413df83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01914",
    "kind": "arxiv",
    "version": 1
  }
}