Pith Number

pith:TOV7JU2S

pith:2018:TOV7JU2S5AF5X2B2X7FIUVPHG3

not attested not anchored not stored refs pending

Collisions of fat points and applications to interpolation theory

Francesco Galuppi

arxiv:1803.02746 v2 · 2018-03-07 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TOV7JU2S5AF5X2B2X7FIUVPHG3}

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	2026-05-17T23:42:43.390515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9babf4d352e80bdbe83abfca8a55e736de279da6764524fe847249a45b8c3184

Aliases

arxiv: 1803.02746 · arxiv_version: 1803.02746v2 · doi: 10.48550/arxiv.1803.02746 · pith_short_12: TOV7JU2S5AF5 · pith_short_16: TOV7JU2S5AF5X2B2 · pith_short_8: TOV7JU2S

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/TOV7JU2S5AF5X2B2X7FIUVPHG3 \
  | 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: 9babf4d352e80bdbe83abfca8a55e736de279da6764524fe847249a45b8c3184

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eabb5b4921febc95d451c21030667ee6de742a246a941ad5517ee074113def0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-07T16:21:53Z",
    "title_canon_sha256": "f133ad751100eb032990d7ebfbfe6a2f65eed78b942c2c2fefca308705b70fa5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02746",
    "kind": "arxiv",
    "version": 2
  }
}