Pith Number

pith:77BSA6AW

pith:2010:77BSA6AWCU3IX3CKWGRLJPKUZ3

not attested not anchored not stored refs pending

Arithmetic properties of the first secant variety to a projective variety

Peter Vermeire

arxiv:1010.2386 v1 · 2010-10-12 · math.AG · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{77BSA6AWCU3IX3CKWGRLJPKUZ3}

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	2026-05-18T04:39:28.114337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffc320781615368bec4ab1a2b4bd54cef7bf85a482d4eb201526e10d3d911379

Aliases

arxiv: 1010.2386 · arxiv_version: 1010.2386v1 · doi: 10.48550/arxiv.1010.2386 · pith_short_12: 77BSA6AWCU3I · pith_short_16: 77BSA6AWCU3IX3CK · pith_short_8: 77BSA6AW

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/77BSA6AWCU3IX3CKWGRLJPKUZ3 \
  | 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: ffc320781615368bec4ab1a2b4bd54cef7bf85a482d4eb201526e10d3d911379

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a33d54aa9f10b50f653d04b3e3d486b6f882e245e6bd6ecabd87cde0bd2aa70",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-10-12T13:30:30Z",
    "title_canon_sha256": "4ed73bdcd153a36d0d3c48ef34c0d45ca0566c5fcfc5e782fe2aba6348873945"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2386",
    "kind": "arxiv",
    "version": 1
  }
}