Pith Number

pith:X3BNYZBX

pith:2015:X3BNYZBX35IHQKYXVDOZRLLADV

not attested not anchored not stored refs pending

Condition of intersecting a projective variety with a varying linear subspace

Peter B\"urgisser

arxiv:1510.04142 v3 · 2015-10-14 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X3BNYZBX35IHQKYXVDOZRLLADV}

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	2026-05-18T01:13:40.059828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bec2dc6437df50782b17a8dd98ad601d633b14c6b2bb01d8b5018107f2fe2306

Aliases

arxiv: 1510.04142 · arxiv_version: 1510.04142v3 · doi: 10.48550/arxiv.1510.04142 · pith_short_12: X3BNYZBX35IH · pith_short_16: X3BNYZBX35IHQKYX · pith_short_8: X3BNYZBX

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/X3BNYZBX35IHQKYXVDOZRLLADV \
  | 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: bec2dc6437df50782b17a8dd98ad601d633b14c6b2bb01d8b5018107f2fe2306

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84d35f321ac64148a7320eed9e86b52166e5c2513f23be6369049be88bea07bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-10-14T15:14:54Z",
    "title_canon_sha256": "cf5c8e58c5415f434a1734b45e9fc08e9cf43b4b2352a446f3ae46b1652b12bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04142",
    "kind": "arxiv",
    "version": 3
  }
}