Pith Number

pith:4TLSYZKY

pith:2019:4TLSYZKYRQ7MZY2CAWM5S2VZRO

not attested not anchored not stored refs pending

The first eigenvalue and eigenfunction of a nonlinear elliptic system

Farid Bozorgnia, Seyyed Abbas Mohammadi, Tomas Vejchodsky

arxiv:1905.12059 v1 · 2019-05-28 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4TLSYZKYRQ7MZY2CAWM5S2VZRO}

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	2026-05-17T23:44:49.087815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4d72c65588c3ecce3420599d96ab98b94ffe377cb5f93164eaececf8b3cecdf

Aliases

arxiv: 1905.12059 · arxiv_version: 1905.12059v1 · doi: 10.48550/arxiv.1905.12059 · pith_short_12: 4TLSYZKYRQ7M · pith_short_16: 4TLSYZKYRQ7MZY2C · pith_short_8: 4TLSYZKY

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/4TLSYZKYRQ7MZY2CAWM5S2VZRO \
  | 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: e4d72c65588c3ecce3420599d96ab98b94ffe377cb5f93164eaececf8b3cecdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c7108afe2851328af958720bae7d91c9a8ac9c3f6b073967a6850be8901c3ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-05-28T20:03:22Z",
    "title_canon_sha256": "aa9daf408996a6ae484c3669e3908861b30f9e72f94ad79a381f3e5e3bdaae2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.12059",
    "kind": "arxiv",
    "version": 1
  }
}