Pith Number

pith:ZPXSACUJ

pith:2012:ZPXSACUJCO6N2J4ZXCMKOLKQMS

not attested not anchored not stored refs pending

Restricted normal cones and the method of alternating projections

D. Russell Luke, Heinz H. Bauschke, Hung M. Phan, Xianfu Wang

arxiv:1205.0318 v1 · 2012-05-02 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZPXSACUJCO6N2J4ZXCMKOLKQMS}

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	2026-05-18T03:56:34.781801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbef200a8913bcdd2799b898a72d5064bbb978e13b856bfe461fad2cec22cbee

Aliases

arxiv: 1205.0318 · arxiv_version: 1205.0318v1 · doi: 10.48550/arxiv.1205.0318 · pith_short_12: ZPXSACUJCO6N · pith_short_16: ZPXSACUJCO6N2J4Z · pith_short_8: ZPXSACUJ

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/ZPXSACUJCO6N2J4ZXCMKOLKQMS \
  | 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: cbef200a8913bcdd2799b898a72d5064bbb978e13b856bfe461fad2cec22cbee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cc5efce2fe09aea98da98d2ca0bceb85cdf2df8cacd8f44fccb65655953b25b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2012-05-02T04:27:42Z",
    "title_canon_sha256": "eab892913d57afcbe6d133affeeaf83cf087eef272fea152b3cba1af75574c0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0318",
    "kind": "arxiv",
    "version": 1
  }
}