Pith Number

pith:7DPUFJIO

pith:2012:7DPUFJIOS3NK6YCVRXZEDNU3S3

not attested not anchored not stored refs pending

Maximum principles for boundary-degenerate second-order linear elliptic differential operators

Paul M. N. Feehan

arxiv:1204.6613 v6 · 2012-04-30 · math.AP · math.PR · q-fin.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DPUFJIOS3NK6YCVRXZEDNU3S3}

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	2026-05-18T01:17:33.752777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8df42a50e96daaf60558df241b69b96f7110945094a102fa064bf6c8a35e209

Aliases

arxiv: 1204.6613 · arxiv_version: 1204.6613v6 · doi: 10.48550/arxiv.1204.6613 · pith_short_12: 7DPUFJIOS3NK · pith_short_16: 7DPUFJIOS3NK6YCV · pith_short_8: 7DPUFJIO

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/7DPUFJIOS3NK6YCVRXZEDNU3S3 \
  | 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: f8df42a50e96daaf60558df241b69b96f7110945094a102fa064bf6c8a35e209

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c392bcd44a7b2e195749d490b34ec40aefc6a46429f782a7a1a444b116f24eea",
    "cross_cats_sorted": [
      "math.PR",
      "q-fin.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-04-30T12:28:27Z",
    "title_canon_sha256": "cc511f020ef42661ba3cbbc38faa571f6a2e2a1a1e291d704300bc2f7bb57c8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6613",
    "kind": "arxiv",
    "version": 6
  }
}