Pith Number

pith:L4TQFK7S

pith:2013:L4TQFK7SWLQOVBVYHAUVGR7KB3

not attested not anchored not stored refs pending

On a singular heat equation with dynamic boundary conditions

Antonio Segatti, Giulio Schimperna, Sergey Zelik

arxiv:1302.5026 v2 · 2013-02-20 · 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{L4TQFK7SWLQOVBVYHAUVGR7KB3}

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	2026-05-18T01:31:19.334096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f2702abf2b2e0ea86b838295347ea0ecd98b7b4ef3f698479c4332764b49cdf

Aliases

arxiv: 1302.5026 · arxiv_version: 1302.5026v2 · doi: 10.48550/arxiv.1302.5026 · pith_short_12: L4TQFK7SWLQO · pith_short_16: L4TQFK7SWLQOVBVY · pith_short_8: L4TQFK7S

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/L4TQFK7SWLQOVBVYHAUVGR7KB3 \
  | 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: 5f2702abf2b2e0ea86b838295347ea0ecd98b7b4ef3f698479c4332764b49cdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2094f408680bc00a2a9c0d531eecc55abd95a65ae677eb8660eabc8f90b207c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-02-20T16:41:15Z",
    "title_canon_sha256": "e8843baf4e34f78cd2550691925303ac084ff5fb3c23bc08cc06566986bb9249"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5026",
    "kind": "arxiv",
    "version": 2
  }
}