Pith Number

pith:VBQWCCCI

pith:2014:VBQWCCCINDFCCCWHJO23NMOQU4

not attested not anchored not stored refs pending

On recoverability properties of fixed measurement matrices

Anatoly Eydelzon

arxiv:1412.7748 v1 · 2014-12-24 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VBQWCCCINDFCCCWHJO23NMOQU4}

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	2026-05-18T02:30:33.117801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a86161084868ca210ac74bb5b6b1d0a714ca75f1af28f86abc8b3333b0627c97

Aliases

arxiv: 1412.7748 · arxiv_version: 1412.7748v1 · doi: 10.48550/arxiv.1412.7748 · pith_short_12: VBQWCCCINDFC · pith_short_16: VBQWCCCINDFCCCWH · pith_short_8: VBQWCCCI

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/VBQWCCCINDFCCCWHJO23NMOQU4 \
  | 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: a86161084868ca210ac74bb5b6b1d0a714ca75f1af28f86abc8b3333b0627c97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e53f8548dbc9b8661d34a6b11d3f839b27516a8fecb257e04f77e1bc2abb10bd",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-12-24T20:27:43Z",
    "title_canon_sha256": "c6ff75393e3a5c693404d5baf107c4f51b17d59498507750be3e2768a1a3091b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.7748",
    "kind": "arxiv",
    "version": 1
  }
}