Pith Number

pith:2OYDTSBJ

pith:2017:2OYDTSBJH6JSCZ2KMQ2YZBFV7G

not attested not anchored not stored refs pending

The interpolation problem for a set of three fat points in $\mathbb{P}^1\times\mathbb{P}^1$

Elena Guardo, Giuseppe Favacchio

arxiv:1701.03677 v1 · 2017-01-13 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OYDTSBJH6JSCZ2KMQ2YZBFV7G}

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	2026-05-18T00:52:54.182128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3b039c8293f9321674a64358c84b5f9926380b9b07060c35fc654784e97c574

Aliases

arxiv: 1701.03677 · arxiv_version: 1701.03677v1 · doi: 10.48550/arxiv.1701.03677 · pith_short_12: 2OYDTSBJH6JS · pith_short_16: 2OYDTSBJH6JSCZ2K · pith_short_8: 2OYDTSBJ

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/2OYDTSBJH6JSCZ2KMQ2YZBFV7G \
  | 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: d3b039c8293f9321674a64358c84b5f9926380b9b07060c35fc654784e97c574

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f047108ed356eb8e7b4dbe175686ab3989ab2056db1e3219ff9a26ef636026e",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-01-13T14:09:41Z",
    "title_canon_sha256": "12223740712b8c94362d6c96b0658d30a53749649ab50177a19d52a6b24d6b65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03677",
    "kind": "arxiv",
    "version": 1
  }
}