Pith Number

pith:B3JE6A2J

pith:2018:B3JE6A2JHKCIHSG3HQAV537TNC

not attested not anchored not stored refs pending

Singular value decomposition of complexes

Andrew J. Sommese, Danielle A. Brake, Frank-Olaf Schreyer, Jonathan D. Hauenstein, Michael E. Stillman

arxiv:1804.09838 v2 · 2018-04-26 · 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{B3JE6A2JHKCIHSG3HQAV537TNC}

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	2026-05-18T00:14:40.024692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ed24f03493a8483c8db3c015eeff3688ec4632025bcb40dae0428d3ea9e75fb

Aliases

arxiv: 1804.09838 · arxiv_version: 1804.09838v2 · doi: 10.48550/arxiv.1804.09838 · pith_short_12: B3JE6A2JHKCI · pith_short_16: B3JE6A2JHKCIHSG3 · pith_short_8: B3JE6A2J

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/B3JE6A2JHKCIHSG3HQAV537TNC \
  | 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: 0ed24f03493a8483c8db3c015eeff3688ec4632025bcb40dae0428d3ea9e75fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7d19f1307d5a0d976d6012cccb73a7d337f9c892947b0d94c11da33ce734dbd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-26T00:18:58Z",
    "title_canon_sha256": "f917860d7c8c140a2f09f9015a720a56a30111b3cc814feb2d500850987b6e4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09838",
    "kind": "arxiv",
    "version": 2
  }
}