Pith Number

pith:BTII2WFQ

pith:2014:BTII2WFQVWADRGCHOBK6T5D5C4

not attested not anchored not stored refs pending

A positive fixed point theorem with applications to systems of Hammerstein integral equations

Alberto Cabada, Gennaro Infante, Jos\'e \'Angel Cid

arxiv:1408.3777 v1 · 2014-08-16 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTII2WFQVWADRGCHOBK6T5D5C4}

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	2026-05-18T02:31:35.743003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cd08d58b0ad803898477055e9f47d172ac83a821885cc74b980e69e630b1f1f

Aliases

arxiv: 1408.3777 · arxiv_version: 1408.3777v1 · doi: 10.48550/arxiv.1408.3777 · pith_short_12: BTII2WFQVWAD · pith_short_16: BTII2WFQVWADRGCH · pith_short_8: BTII2WFQ

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/BTII2WFQVWADRGCHOBK6T5D5C4 \
  | 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: 0cd08d58b0ad803898477055e9f47d172ac83a821885cc74b980e69e630b1f1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "339dfa64493b91b4c81c1a9f08964c47b0e5ed314a5e433304f1e237bbde9830",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2014-08-16T22:08:48Z",
    "title_canon_sha256": "ae92b954e01a0fb0d1973c289397c16e4ca58ef83bdd3de66b4eeae756a54780"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3777",
    "kind": "arxiv",
    "version": 1
  }
}