Pith Number

pith:CDCULWNW

pith:2014:CDCULWNWPFRT7ZOAS54FE5DVIA

not attested not anchored not stored refs pending

On the size of the fibers of spectral maps induced by semialgebraic embeddings

Jose F. Fernando

arxiv:1403.8059 v2 · 2014-03-31 · 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{CDCULWNWPFRT7ZOAS54FE5DVIA}

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	2026-05-18T01:26:19.050357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10c545d9b679633fe5c0977852747540068f8fb03e90adcd4b60cf39e99c427e

Aliases

arxiv: 1403.8059 · arxiv_version: 1403.8059v2 · doi: 10.48550/arxiv.1403.8059 · pith_short_12: CDCULWNWPFRT · pith_short_16: CDCULWNWPFRT7ZOA · pith_short_8: CDCULWNW

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/CDCULWNWPFRT7ZOAS54FE5DVIA \
  | 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: 10c545d9b679633fe5c0977852747540068f8fb03e90adcd4b60cf39e99c427e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1450b8d785b351a67dabae66709f99753ac352ec5a1651331521807ee807781b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-03-31T15:46:17Z",
    "title_canon_sha256": "473948427979dce6c0a64ed44def02e5384cd3dc81dffbfa7c549de8c9fb1736"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.8059",
    "kind": "arxiv",
    "version": 2
  }
}