Pith Number

pith:B2VVTC3N

pith:2011:B2VVTC3NB5PKSVUTG7GG53RIQ3

not attested not anchored not stored refs pending

H-Matrix and Block Error Tolerances

Andrew M. Bradley

arxiv:1110.2807 v1 · 2011-10-12 · 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{B2VVTC3NB5PKSVUTG7GG53RIQ3}

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	2026-05-18T04:11:06.927879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0eab598b6d0f5ea9569337cc6eee2886d5b282fe0035698d62a591e6aff3e1df

Aliases

arxiv: 1110.2807 · arxiv_version: 1110.2807v1 · doi: 10.48550/arxiv.1110.2807 · pith_short_12: B2VVTC3NB5PK · pith_short_16: B2VVTC3NB5PKSVUT · pith_short_8: B2VVTC3N

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/B2VVTC3NB5PKSVUTG7GG53RIQ3 \
  | 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: 0eab598b6d0f5ea9569337cc6eee2886d5b282fe0035698d62a591e6aff3e1df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b37e5bf05b3aeed5ac937bd2e6bff774263a4e4b9d115b870aa927eb4eb8cfa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-10-12T22:09:17Z",
    "title_canon_sha256": "64c7547c80f86152a61f3aac6072c0fae08fa603fd127e9528ef64d0bf46142a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2807",
    "kind": "arxiv",
    "version": 1
  }
}