Pith Number

pith:6QXNEBSE

pith:2018:6QXNEBSE2DE3W3THDIK6DIWJKR

not attested not anchored not stored refs pending

The Poisson equation from non-local to local

Umberto Biccari, V\'ictor Hern\'andez-Santamar\'ia

arxiv:1801.09470 v1 · 2018-01-29 · 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{6QXNEBSE2DE3W3THDIK6DIWJKR}

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	2026-05-18T00:24:57.370909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f42ed20644d0c9bb6e671a15e1a2c9544d2b759da3f3305261c36687b1906809

Aliases

arxiv: 1801.09470 · arxiv_version: 1801.09470v1 · doi: 10.48550/arxiv.1801.09470 · pith_short_12: 6QXNEBSE2DE3 · pith_short_16: 6QXNEBSE2DE3W3TH · pith_short_8: 6QXNEBSE

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/6QXNEBSE2DE3W3THDIK6DIWJKR \
  | 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: f42ed20644d0c9bb6e671a15e1a2c9544d2b759da3f3305261c36687b1906809

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bc136dd657a9ed5aafb468f2f858b17f278a104e41fdd2670a87e84d90e18df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-01-29T12:26:33Z",
    "title_canon_sha256": "62f7f5b0a4e38e22ceef64f6043860b4494d46a36a9c03315896aaa2ec23fa62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09470",
    "kind": "arxiv",
    "version": 1
  }
}