Pith Number

pith:QJY3QB47

pith:2010:QJY3QB47Y44ZESPRVOJBU5XIFW

not attested not anchored not stored refs pending

The rate of convergence in the method of alternating projections

Catalin Badea, Sophie Grivaux, Vladimir Muller

arxiv:1006.2047 v1 · 2010-06-10 · math.FA · 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{QJY3QB47Y44ZESPRVOJBU5XIFW}

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	2026-05-18T03:46:17.080385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8271b8079fc7399249f1ab921a76e82d87d3db428ebe3c57180fcc4da3e6517f

Aliases

arxiv: 1006.2047 · arxiv_version: 1006.2047v1 · doi: 10.48550/arxiv.1006.2047 · pith_short_12: QJY3QB47Y44Z · pith_short_16: QJY3QB47Y44ZESPR · pith_short_8: QJY3QB47

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/QJY3QB47Y44ZESPRVOJBU5XIFW \
  | 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: 8271b8079fc7399249f1ab921a76e82d87d3db428ebe3c57180fcc4da3e6517f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f6bffb67ee09505732c0179ccb68e27f6411c809b56cb4f8d0f4932635d9f27",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2010-06-10T14:56:17Z",
    "title_canon_sha256": "2cab033142800f33e5cae404b16f0fad25199695967ff45a249e42f58bf3481c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.2047",
    "kind": "arxiv",
    "version": 1
  }
}