Pith Number

pith:6XKSM343

pith:2013:6XKSM343JITJQUKNKD6CEPV5DH

not attested not anchored not stored refs pending

An algorithm for variable density sampling with block-constrained acquisition

Claire Boyer (IMT), J\'er\'emie Bigot (DMIA), Pierre Weiss (ITAV)

arxiv:1310.4393 v3 · 2013-10-16 · cs.IT · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6XKSM343JITJQUKNKD6CEPV5DH}

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	2026-05-18T03:00:58.398838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5d5266f9b4a2698514d50fc223ebd19c0c51dfc61455c023e336e783c32b4a9

Aliases

arxiv: 1310.4393 · arxiv_version: 1310.4393v3 · doi: 10.48550/arxiv.1310.4393 · pith_short_12: 6XKSM343JITJ · pith_short_16: 6XKSM343JITJQUKN · pith_short_8: 6XKSM343

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/6XKSM343JITJQUKNKD6CEPV5DH \
  | 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: f5d5266f9b4a2698514d50fc223ebd19c0c51dfc61455c023e336e783c32b4a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47777676734908444c899c970143616db9bbe425b0b557fc1ce7b8217d9fa389",
    "cross_cats_sorted": [
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-10-16T14:19:05Z",
    "title_canon_sha256": "800ff30bae295ab8037a2b9b60afa8652f4bc6d83c06ccb8029c510fc84d00ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.4393",
    "kind": "arxiv",
    "version": 3
  }
}