Pith Number

pith:LMU5FODD

pith:2016:LMU5FODDJSWDFFLL4KO6XESDFU

not attested not anchored not stored refs pending

A limiting absorption principle for the Helmholtz equation with variable coefficients

Federico Cacciafesta, Piero D'Ancona, Renato Luc\`a

arxiv:1612.00950 v2 · 2016-12-03 · 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{LMU5FODDJSWDFFLL4KO6XESDFU}

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	2026-05-17T23:39:42.313014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b29d2b8634cac32956be29deb92432d052324092240bff61db6c228f607be36

Aliases

arxiv: 1612.00950 · arxiv_version: 1612.00950v2 · doi: 10.48550/arxiv.1612.00950 · pith_short_12: LMU5FODDJSWD · pith_short_16: LMU5FODDJSWDFFLL · pith_short_8: LMU5FODD

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/LMU5FODDJSWDFFLL4KO6XESDFU \
  | 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: 5b29d2b8634cac32956be29deb92432d052324092240bff61db6c228f607be36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f35b19742a0df3b12e52ce25dbff56389f7e47756919eb1b29770807f165a893",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-12-03T10:25:40Z",
    "title_canon_sha256": "da248557ddfde4d5969222562ca66845742704dcda2c217bb749799e513e8aca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.00950",
    "kind": "arxiv",
    "version": 2
  }
}