Pith Number

pith:5RBNX7XN

pith:2012:5RBNX7XNRFUGITWYJELEKKT4G3

not attested not anchored not stored refs pending

A model reduction approach to numerical inversion for a parabolic partial differential equation

Alexander V. Mamonov, Liliana Borcea, Mikhail Zaslavsky, Vladimir Druskin

arxiv:1210.1257 v5 · 2012-10-03 · 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{5RBNX7XNRFUGITWYJELEKKT4G3}

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	2026-05-18T02:33:25.714309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec42dbfeed8968644ed84916452a7c36c197a9f27e0e12d1b3671e7adc0f35b9

Aliases

arxiv: 1210.1257 · arxiv_version: 1210.1257v5 · doi: 10.48550/arxiv.1210.1257 · pith_short_12: 5RBNX7XNRFUG · pith_short_16: 5RBNX7XNRFUGITWY · pith_short_8: 5RBNX7XN

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/5RBNX7XNRFUGITWYJELEKKT4G3 \
  | 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: ec42dbfeed8968644ed84916452a7c36c197a9f27e0e12d1b3671e7adc0f35b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0f66516047f454e3fa930506567adec41f4eeea390c6544bfbed9221b345252",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-10-03T22:48:10Z",
    "title_canon_sha256": "1665232af835b7b93e1871d2de50270f820cd29b496f36eef75dfa9b6c862083"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1257",
    "kind": "arxiv",
    "version": 5
  }
}