Pith Number

pith:IUFURJ6D

pith:2019:IUFURJ6DREIP53QVWG2GSZRX2F

not attested not anchored not stored refs pending

Nonlinear variational problems with lack of compactness

Gabriele Cora

arxiv:1901.08337 v1 · 2019-01-24 · math.AP · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IUFURJ6DREIP53QVWG2GSZRX2F}

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	2026-05-17T23:55:37.297150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

450b48a7c38910feee15b1b4696637d14a7ca8ee952d69db5a9dc39870a3e10c

Aliases

arxiv: 1901.08337 · arxiv_version: 1901.08337v1 · doi: 10.48550/arxiv.1901.08337 · pith_short_12: IUFURJ6DREIP · pith_short_16: IUFURJ6DREIP53QV · pith_short_8: IUFURJ6D

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/IUFURJ6DREIP53QVWG2GSZRX2F \
  | 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: 450b48a7c38910feee15b1b4696637d14a7ca8ee952d69db5a9dc39870a3e10c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a671da001eeb772c729e41c811be64788eec4fc5653e59d315ab3d130d2bb312",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-01-24T10:43:22Z",
    "title_canon_sha256": "f17267848a49214504ea92078b7303b25c91ec6778ce9b552863284ccbe3886d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08337",
    "kind": "arxiv",
    "version": 1
  }
}