Pith Number

pith:CN52R246

pith:2015:CN52R246JFGD3LOR47HS4RRQB6

not attested not anchored not stored refs pending

Approximating Subadditive Hadamard Functions on Implicit Matrices

Alan Roytman, Gregory Vorsanger, Vladimir Braverman

arxiv:1511.00838 v1 · 2015-11-03 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CN52R246JFGD3LOR47HS4RRQB6}

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	2026-05-18T01:27:56.086185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

137ba8eb9e494c3dadd1e7cf2e46300f87c976517f9306dccf36315889ebb976

Aliases

arxiv: 1511.00838 · arxiv_version: 1511.00838v1 · doi: 10.48550/arxiv.1511.00838 · pith_short_12: CN52R246JFGD · pith_short_16: CN52R246JFGD3LOR · pith_short_8: CN52R246

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/CN52R246JFGD3LOR47HS4RRQB6 \
  | 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: 137ba8eb9e494c3dadd1e7cf2e46300f87c976517f9306dccf36315889ebb976

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50a0934931914b8ad5dadd5cafcc4d95892a4b1d2fa148005935bef909f111aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-11-03T09:54:24Z",
    "title_canon_sha256": "4f55d8c4d41d54c516e1c50f565b5000b92bbebf9899239df0b421c82b76ae80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00838",
    "kind": "arxiv",
    "version": 1
  }
}