Pith Number

pith:Q6A74XBE

pith:2012:Q6A74XBEZFSKSNFGPJJRQHSXC4

not attested not anchored not stored refs pending

Uniqueness and regularization for unknown spacewise lower-order coefficient and source for the heat type equation

Adriano De Cezaro, Fabiana Travessini De Cezaro

arxiv:1210.7348 v1 · 2012-10-27 · math.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q6A74XBEZFSKSNFGPJJRQHSXC4}

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	2026-05-18T03:42:10.394978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8781fe5c24c964a934a67a53181e571713a0df9831ac70d375cf9ef818d22b6a

Aliases

arxiv: 1210.7348 · arxiv_version: 1210.7348v1 · doi: 10.48550/arxiv.1210.7348 · pith_short_12: Q6A74XBEZFSK · pith_short_16: Q6A74XBEZFSKSNFG · pith_short_8: Q6A74XBE

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/Q6A74XBEZFSKSNFGPJJRQHSXC4 \
  | 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: 8781fe5c24c964a934a67a53181e571713a0df9831ac70d375cf9ef818d22b6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "633f93590387e3e5fb73da8acdd54168c83f49183965c45ded829547e320a7ba",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-10-27T16:37:29Z",
    "title_canon_sha256": "25399047e4f7a50524844f889de2331a252100ea819840da6780b9511ba75294"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7348",
    "kind": "arxiv",
    "version": 1
  }
}