Pith Number

pith:IEPF2CHS

pith:2016:IEPF2CHSNNX3HB7J2YTBDWFVLZ

not attested not anchored not stored refs pending

A topological version of Hilbert's Nullstellensatz

Carmelo A. Finocchiaro, Dario Spirito, Marco Fontana

arxiv:1605.03105 v1 · 2016-05-10 · math.AC · 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{IEPF2CHSNNX3HB7J2YTBDWFVLZ}

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	2026-05-18T01:15:07.569494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

411e5d08f26b6fb387e9d62611d8b55e7fd2973a1ffdc5946feb38470dd1257f

Aliases

arxiv: 1605.03105 · arxiv_version: 1605.03105v1 · doi: 10.48550/arxiv.1605.03105 · pith_short_12: IEPF2CHSNNX3 · pith_short_16: IEPF2CHSNNX3HB7J · pith_short_8: IEPF2CHS

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/IEPF2CHSNNX3HB7J2YTBDWFVLZ \
  | 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: 411e5d08f26b6fb387e9d62611d8b55e7fd2973a1ffdc5946feb38470dd1257f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdb36f69f532a7e470997835e14ee1d5c3e94a513c74f522be82158709bfdbd3",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2016-05-10T17:08:30Z",
    "title_canon_sha256": "c8b9ffff9834f4e52b53e4d774b360c6978ab76fe18c1229c65be20684873f0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03105",
    "kind": "arxiv",
    "version": 1
  }
}