Pith Number

pith:QD3TDBH3

pith:2017:QD3TDBH3RUD64GIOL3KPSRQJTN

not attested not anchored not stored refs pending

Randomized Iterative Methods with Alternating Projections

Hua Xiang, Lin Zhang

arxiv:1708.09845 v1 · 2017-08-31 · 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{QD3TDBH3RUD64GIOL3KPSRQJTN}

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	2026-05-18T00:36:14.903480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80f73184fb8d07ee190e5ed4f946099b5560022e89d4829e5d76cd63aa208aab

Aliases

arxiv: 1708.09845 · arxiv_version: 1708.09845v1 · doi: 10.48550/arxiv.1708.09845 · pith_short_12: QD3TDBH3RUD6 · pith_short_16: QD3TDBH3RUD64GIO · pith_short_8: QD3TDBH3

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/QD3TDBH3RUD64GIOL3KPSRQJTN \
  | 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: 80f73184fb8d07ee190e5ed4f946099b5560022e89d4829e5d76cd63aa208aab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21b59e91e234f65c6d12c9673c174f6237d5cdf2ca1aadeb1dd330c816b0d130",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-08-31T17:51:29Z",
    "title_canon_sha256": "919c07b6d292978ef193784b96b2a78b0736c4067cc54c58f93dacb8c4066c4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09845",
    "kind": "arxiv",
    "version": 1
  }
}