Pith Number

pith:BHDMAHFI

pith:2018:BHDMAHFIXIC747SNVCCF2LMLTP

not attested not anchored not stored refs pending

The $\infty$-eigenvalue problem with a sign-changing weight

Joana Terra, Julio D. Rossi, Uriel Kaufmann

arxiv:1810.05696 v1 · 2018-10-12 · 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{BHDMAHFIXIC747SNVCCF2LMLTP}

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	2026-05-18T00:03:27.210667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09c6c01ca8ba05fe7e4da8845d2d8b9bdb6cd322cef47076a487c8170e97a910

Aliases

arxiv: 1810.05696 · arxiv_version: 1810.05696v1 · doi: 10.48550/arxiv.1810.05696 · pith_short_12: BHDMAHFIXIC7 · pith_short_16: BHDMAHFIXIC747SN · pith_short_8: BHDMAHFI

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/BHDMAHFIXIC747SNVCCF2LMLTP \
  | 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: 09c6c01ca8ba05fe7e4da8845d2d8b9bdb6cd322cef47076a487c8170e97a910

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c18021e6e816a130e456e489a7879b4f4c170c55f5af90393a4601e721cd370",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-10-12T19:36:25Z",
    "title_canon_sha256": "516b950bb41a786f8bb2865e71afd181808b1de7d85839b80c8d7b5e83aecd3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05696",
    "kind": "arxiv",
    "version": 1
  }
}