Pith Number

pith:J4W74APY

pith:2011:J4W74APYXSU6SKXDZ2RIKANEKS

not attested not anchored not stored refs pending

Parabolic inverse convection-diffusion-reaction problem solved using an adaptive parametrization

Fabio Marcuzzi, Giulia Deolmi

arxiv:1110.2376 v1 · 2011-10-11 · 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{J4W74APYXSU6SKXDZ2RIKANEKS}

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	2026-05-18T04:11:09.156435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f2dfe01f8bca9e92ae3cea28501a454b7914540ff6f5d57f9046b27420c2a70

Aliases

arxiv: 1110.2376 · arxiv_version: 1110.2376v1 · doi: 10.48550/arxiv.1110.2376 · pith_short_12: J4W74APYXSU6 · pith_short_16: J4W74APYXSU6SKXD · pith_short_8: J4W74APY

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/J4W74APYXSU6SKXDZ2RIKANEKS \
  | 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: 4f2dfe01f8bca9e92ae3cea28501a454b7914540ff6f5d57f9046b27420c2a70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "775ced65bd65316462702340ef74f68220b815a625c1c05ebeabcd35283a58f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-10-11T13:49:19Z",
    "title_canon_sha256": "82a92bed7dd6dc197a441e58535623ca0d4480dc7367b5cff01ae0f4b00aaacc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2376",
    "kind": "arxiv",
    "version": 1
  }
}