Pith Number

pith:ZSJRQOQF

pith:2016:ZSJRQOQFAIJGXRYHWCTUF62X4X

not attested not anchored not stored refs pending

New Results on CGR/CUR Approximation of a Matrix

Victor Y. Pan

arxiv:1607.04825 v2 · 2016-07-17 · 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{ZSJRQOQFAIJGXRYHWCTUF62X4X}

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	2026-05-18T00:54:47.557851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc93183a0502126bc707b0a742fb57e5fee2d9b5ed69cca224f9a47eae8e50ef

Aliases

arxiv: 1607.04825 · arxiv_version: 1607.04825v2 · doi: 10.48550/arxiv.1607.04825 · pith_short_12: ZSJRQOQFAIJG · pith_short_16: ZSJRQOQFAIJGXRYH · pith_short_8: ZSJRQOQF

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/ZSJRQOQFAIJGXRYHWCTUF62X4X \
  | 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: cc93183a0502126bc707b0a742fb57e5fee2d9b5ed69cca224f9a47eae8e50ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee93b6b08ee52387f47f21d4bdbd83d2741a988989232b73431d056a2a5610d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-07-17T03:55:47Z",
    "title_canon_sha256": "48554424b7902a3b6f9a70d95be4a713ffbc82807dcdafb388d391e62f69b2c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.04825",
    "kind": "arxiv",
    "version": 2
  }
}