Pith Number

pith:HOPLGCMW

pith:2014:HOPLGCMW2M6HDTQCGOLZTVKGBA

not attested not anchored not stored refs pending

Metrics for matrix-valued measures via test functions

Lipeng Ning, Tryphon T. Georgiou

arxiv:1409.4097 v1 · 2014-09-14 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HOPLGCMW2M6HDTQCGOLZTVKGBA}

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	2026-05-18T02:42:53.059494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b9eb30996d33c71ce02339799d546080b856a13d6e8fc7a3b7df72223e19869

Aliases

arxiv: 1409.4097 · arxiv_version: 1409.4097v1 · doi: 10.48550/arxiv.1409.4097 · pith_short_12: HOPLGCMW2M6H · pith_short_16: HOPLGCMW2M6HDTQC · pith_short_8: HOPLGCMW

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/HOPLGCMW2M6HDTQCGOLZTVKGBA \
  | 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: 3b9eb30996d33c71ce02339799d546080b856a13d6e8fc7a3b7df72223e19869

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fc21bdf1d5975274a5db5d258a7977093d527cb13aa4298a28238ee5e103380",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2014-09-14T20:19:41Z",
    "title_canon_sha256": "929220f53f2446b34291ec71aea137f22e4a595162008fcd39f4e7d0fb98f4f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4097",
    "kind": "arxiv",
    "version": 1
  }
}