Pith Number

pith:Q7TWWU2R

pith:2015:Q7TWWU2RMFQC3TVPULZQJL5B72

not attested not anchored not stored refs pending

Parabolic problems with general Wentzell boundary conditions and diffusion on the boundary

Davide Guidetti

arxiv:1504.05363 v1 · 2015-04-21 · 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{Q7TWWU2RMFQC3TVPULZQJL5B72}

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	2026-05-18T02:18:14.467516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e76b535161602dceafa2f304afa1fea0c7d5d0df43eaf406e00945d6c7701a

Aliases

arxiv: 1504.05363 · arxiv_version: 1504.05363v1 · doi: 10.48550/arxiv.1504.05363 · pith_short_12: Q7TWWU2RMFQC · pith_short_16: Q7TWWU2RMFQC3TVP · pith_short_8: Q7TWWU2R

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/Q7TWWU2RMFQC3TVPULZQJL5B72 \
  | 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: 87e76b535161602dceafa2f304afa1fea0c7d5d0df43eaf406e00945d6c7701a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b16be8d8c29c59f4fed75d29e40e0c2b444b8c70bd17549bb8cb31d5156a38f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-04-21T09:54:03Z",
    "title_canon_sha256": "35580f1892d5d9225502f1969d217985aaae11b8922703fd781a2cda2d743142"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05363",
    "kind": "arxiv",
    "version": 1
  }
}