Pith Number

pith:7WVKDQTA

pith:2018:7WVKDQTAVBUJID2CD6TAWN3ZJW

not attested not anchored not stored refs pending

Eigenvalue problems for Fredholm operators with set-valued perturbations

Antonio Iannizzotto, Pierluigi Benevieri

arxiv:1812.01347 v1 · 2018-12-04 · 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{7WVKDQTAVBUJID2CD6TAWN3ZJW}

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	2026-05-17T23:59:12.700236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdaaa1c260a868940f421fa60b37794d889b6a2a7749e2d4ac10bc0eb13f765a

Aliases

arxiv: 1812.01347 · arxiv_version: 1812.01347v1 · doi: 10.48550/arxiv.1812.01347 · pith_short_12: 7WVKDQTAVBUJ · pith_short_16: 7WVKDQTAVBUJID2C · pith_short_8: 7WVKDQTA

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/7WVKDQTAVBUJID2CD6TAWN3ZJW \
  | 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: fdaaa1c260a868940f421fa60b37794d889b6a2a7749e2d4ac10bc0eb13f765a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0f6fb2f8cdd954ef5ffa961738063ac9c726afa582402eca4fdd1007e2def71",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-12-04T11:43:27Z",
    "title_canon_sha256": "bc02a27dea16a88d1c711b2c77b844fef072e34be53215b7b4eca3cb8064a18a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01347",
    "kind": "arxiv",
    "version": 1
  }
}