Pith Number

pith:6AANQPFA

pith:2022:6AANQPFAZFVV3FHG4HA63AL66Y

not attested not anchored not stored refs pending

Blow up in a periodic semilinear heat equation

J.A.C. Weideman, John R. King, Marco Fasondini

arxiv:2208.14522 v1 · 2022-08-30 · math.AP · cs.NA · math.CV · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6AANQPFAZFVV3FHG4HA63AL66Y}

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	2026-07-05T05:43:54.347620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f000d83ca0c96b5d94e6e1c1ed817ef6291368ab32bd1e59c96c50d414e741c3

Aliases

arxiv: 2208.14522 · arxiv_version: 2208.14522v1 · doi: 10.48550/arxiv.2208.14522 · pith_short_12: 6AANQPFAZFVV · pith_short_16: 6AANQPFAZFVV3FHG · pith_short_8: 6AANQPFA

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/6AANQPFAZFVV3FHG4HA63AL66Y \
  | 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: f000d83ca0c96b5d94e6e1c1ed817ef6291368ab32bd1e59c96c50d414e741c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f82596f5619b07568389e939bcd04ee208b1407022f9a300ba3a897330efde6",
    "cross_cats_sorted": [
      "cs.NA",
      "math.CV",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2022-08-30T20:13:13Z",
    "title_canon_sha256": "d8ad0a597f6959e1a8bf1cbbaa50d498a8ce6c6bbcbde5c48d597a676e979c9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.14522",
    "kind": "arxiv",
    "version": 1
  }
}