Pith Number

pith:FF7RWYAY

pith:2018:FF7RWYAYUCYJ4VO64J327JQVA2

not attested not anchored not stored refs pending

Ordinary differential equations with point interactions: An inverse problem

Cristina Jorge, Joao Nuno Prata, Nuno Costa Dias

arxiv:1811.01083 v1 · 2018-11-02 · math.FA · 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{FF7RWYAYUCYJ4VO64J327JQVA2}

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	2026-05-17T23:47:02.566682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

297f1b6018a0b09e55dee277afa61506af0487c49215637df24ed0a0c2fcdc72

Aliases

arxiv: 1811.01083 · arxiv_version: 1811.01083v1 · doi: 10.48550/arxiv.1811.01083 · pith_short_12: FF7RWYAYUCYJ · pith_short_16: FF7RWYAYUCYJ4VO6 · pith_short_8: FF7RWYAY

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/FF7RWYAYUCYJ4VO64J327JQVA2 \
  | 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: 297f1b6018a0b09e55dee277afa61506af0487c49215637df24ed0a0c2fcdc72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8a3b57940d389a70209201d168bf9284e2346ba5c4935d458790b13dbca13f8",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2018-11-02T20:47:25Z",
    "title_canon_sha256": "cebecfcca441da9b82a3e480d949bd6b99233a9b53be1c7baaef68f34426265a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.01083",
    "kind": "arxiv",
    "version": 1
  }
}