Pith Number

pith:4FISPUCV

pith:2018:4FISPUCVDPYQDKR6Z3C7M7XVTW

not attested not anchored not stored refs pending

Pointwise a posteriori error bounds for blow-up in the semilinear heat equation

Irene Kyza, Stephen Metcalfe

arxiv:1802.07757 v1 · 2018-02-21 · 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{4FISPUCVDPYQDKR6Z3C7M7XVTW}

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	2026-05-18T00:22:48.975995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e15127d0551bf101aa3ecec5f67ef59db04cb458ac842acf9161bc6cc59995c3

Aliases

arxiv: 1802.07757 · arxiv_version: 1802.07757v1 · doi: 10.48550/arxiv.1802.07757 · pith_short_12: 4FISPUCVDPYQ · pith_short_16: 4FISPUCVDPYQDKR6 · pith_short_8: 4FISPUCV

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/4FISPUCVDPYQDKR6Z3C7M7XVTW \
  | 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: e15127d0551bf101aa3ecec5f67ef59db04cb458ac842acf9161bc6cc59995c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ecf37f1a5a79963d989ddae6aff515b2f46769bb2630d4332655cb703f9f206",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-21T19:13:01Z",
    "title_canon_sha256": "c0b20a5c1dbe0932c8112ac4b567243661c3722f41f0056afd28d391fe622395"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07757",
    "kind": "arxiv",
    "version": 1
  }
}