Pith Number

pith:3XCZQXEO

pith:2013:3XCZQXEO6H55RFUYBB2OSMWAJH

not attested not anchored not stored refs pending

On sparsity averaging

Jason D. McEwen, Rafael E. Carrillo, Yves Wiaux

arxiv:1307.1360 v1 · 2013-07-04 · cs.IT · astro-ph.IM · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3XCZQXEO6H55RFUYBB2OSMWAJH}

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	2026-05-18T03:19:13.961234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddc5985c8ef1fbd896980874e932c049c45fb3548da40cea74708ffbe156a68b

Aliases

arxiv: 1307.1360 · arxiv_version: 1307.1360v1 · doi: 10.48550/arxiv.1307.1360 · pith_short_12: 3XCZQXEO6H55 · pith_short_16: 3XCZQXEO6H55RFUY · pith_short_8: 3XCZQXEO

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/3XCZQXEO6H55RFUYBB2OSMWAJH \
  | 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: ddc5985c8ef1fbd896980874e932c049c45fb3548da40cea74708ffbe156a68b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f0985f2c61e5f3158e32d3ee47a593ededa78d68725263fcb46e0f8f91e099a",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-07-04T14:49:03Z",
    "title_canon_sha256": "9c35adeb65c04a9896abd63b2396318d1a0eafbd38fa7b3aefb0b874ad4b681a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1360",
    "kind": "arxiv",
    "version": 1
  }
}