Pith Number

pith:MNVMNV4Y

pith:2018:MNVMNV4YC6FH6JECTL4KOMOK2C

not attested not anchored not stored refs pending

Hypersurface model-fields of definition for smooth hypersurfaces and their twists

Eslam Badr, Francesc Bars

arxiv:1804.06118 v1 · 2018-04-17 · math.NT · 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{MNVMNV4YC6FH6JECTL4KOMOK2C}

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	2026-05-18T00:18:21.666959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

636ac6d798178a7f24829af8a731cad0991f1662dcb625b3eff210afdbd9aa17

Aliases

arxiv: 1804.06118 · arxiv_version: 1804.06118v1 · doi: 10.48550/arxiv.1804.06118 · pith_short_12: MNVMNV4YC6FH · pith_short_16: MNVMNV4YC6FH6JEC · pith_short_8: MNVMNV4Y

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/MNVMNV4YC6FH6JECTL4KOMOK2C \
  | 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: 636ac6d798178a7f24829af8a731cad0991f1662dcb625b3eff210afdbd9aa17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a48d60b3885a933563209a83e2d4518258ee33b961deebf2072e08f82557c1a",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2018-04-17T09:09:14Z",
    "title_canon_sha256": "d5cf28f010ae265f91e53020021621ea83a0362f239ec0b0321a2943a491aa5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06118",
    "kind": "arxiv",
    "version": 1
  }
}