Pith Number

pith:7WDIVIE3

pith:2014:7WDIVIE3YJZ4H3NC46QYZYZOY3

not attested not anchored not stored refs pending

Riemann-Hilbert problems with constraints

Florian Bertrand, Giuseppe Della Sala

arxiv:1407.3709 v5 · 2014-07-14 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7WDIVIE3YJZ4H3NC46QYZYZOY3}

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	2026-05-18T00:07:44.187035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd868aa09bc273c3eda2e7a18ce32ec6c25c394dfcddbfde419c00d6f7e92ef9

Aliases

arxiv: 1407.3709 · arxiv_version: 1407.3709v5 · doi: 10.48550/arxiv.1407.3709 · pith_short_12: 7WDIVIE3YJZ4 · pith_short_16: 7WDIVIE3YJZ4H3NC · pith_short_8: 7WDIVIE3

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/7WDIVIE3YJZ4H3NC46QYZYZOY3 \
  | 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: fd868aa09bc273c3eda2e7a18ce32ec6c25c394dfcddbfde419c00d6f7e92ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c75bf158fc30ea2415801a51376010ef28bf401ec03cc68fbfbc4c239713f5c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2014-07-14T16:04:07Z",
    "title_canon_sha256": "f487f56ecf6abcbbc8133c0c446d4d5813673b5b51ce7dbc8bc3685d31053029"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.3709",
    "kind": "arxiv",
    "version": 5
  }
}