Pith Number

pith:GJDW3P7S

pith:2013:GJDW3P7S4DMP3USAMC55TROGZS

not attested not anchored not stored refs pending

On cluster points of alternating projections

Dominikus Noll, Heinz H. Bauschke

arxiv:1307.2712 v1 · 2013-07-10 · math.OC · 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{GJDW3P7S4DMP3USAMC55TROGZS}

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	2026-05-18T03:18:50.648618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32476dbff2e0d8fdd24060bbd9c5c6cca49b47a32e7080f98f848925823ddf89

Aliases

arxiv: 1307.2712 · arxiv_version: 1307.2712v1 · doi: 10.48550/arxiv.1307.2712 · pith_short_12: GJDW3P7S4DMP · pith_short_16: GJDW3P7S4DMP3USA · pith_short_8: GJDW3P7S

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/GJDW3P7S4DMP3USAMC55TROGZS \
  | 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: 32476dbff2e0d8fdd24060bbd9c5c6cca49b47a32e7080f98f848925823ddf89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10c160ccb5214ba590224ce5fa560213bb98f5fc3b4aedf59cea679f76afe683",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-07-10T08:20:20Z",
    "title_canon_sha256": "badf273e26de778e16ec95add186b390d410fe5ca6c50dd3106da50295f914fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2712",
    "kind": "arxiv",
    "version": 1
  }
}