Pith Number

pith:XZGYVYQJ

pith:2019:XZGYVYQJQ5MKUHYYPXAKF43XWF

not attested not anchored not stored refs pending

On the Chern classes of singular complete intersections

Jose Seade, Michelle Morgado, Roberto Callejas-Bedregal

arxiv:1909.01117 v1 · 2019-09-03 · 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{XZGYVYQJQ5MKUHYYPXAKF43XWF}

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	2026-07-05T00:20:19.238467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be4d8ae2098758aa1f187dc0a2f377b14c72ba65d3449cd070bef4005a6c153c

Aliases

arxiv: 1909.01117 · arxiv_version: 1909.01117v1 · doi: 10.48550/arxiv.1909.01117 · pith_short_12: XZGYVYQJQ5MK · pith_short_16: XZGYVYQJQ5MKUHYY · pith_short_8: XZGYVYQJ

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/XZGYVYQJQ5MKUHYYPXAKF43XWF \
  | 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: be4d8ae2098758aa1f187dc0a2f377b14c72ba65d3449cd070bef4005a6c153c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aef03a75ea733c62d492dd3835bd6d21ccdc8a83647cd76963a313379a93acdb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-09-03T12:42:07Z",
    "title_canon_sha256": "66b6bb748b5d1eeea6a55f78e3d81e86ca4a63895933cfdd08baea4a1334cc86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.01117",
    "kind": "arxiv",
    "version": 1
  }
}