Pith Number

pith:DDWUTXES

pith:2018:DDWUTXESE6SFTEN7PXR5GQNDJ4

not attested not anchored not stored refs pending

Differential signatures of algebraic curves

Cynthia Vinzant, Irina A. Kogan, Michael Ruddy

arxiv:1812.11388 v2 · 2018-12-29 · math.AG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDWUTXESE6SFTEN7PXR5GQNDJ4}

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	2026-05-17T23:43:50.215966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18ed49dc9227a45991bf7de3d341a34f0d1af163d9860649ceb5705d50bf497b

Aliases

arxiv: 1812.11388 · arxiv_version: 1812.11388v2 · doi: 10.48550/arxiv.1812.11388 · pith_short_12: DDWUTXESE6SF · pith_short_16: DDWUTXESE6SFTEN7 · pith_short_8: DDWUTXES

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/DDWUTXESE6SFTEN7PXR5GQNDJ4 \
  | 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: 18ed49dc9227a45991bf7de3d341a34f0d1af163d9860649ceb5705d50bf497b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4818a568fc7179377c923acb0655e76d425491b3288de714b207105d37a3952a",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-12-29T15:54:54Z",
    "title_canon_sha256": "537a6d0872202ffbf0fd3e9bfe6c77fdab91c3f33fbefaabe476849d0012e34d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.11388",
    "kind": "arxiv",
    "version": 2
  }
}