Pith Number

pith:2MVQYX55

pith:2013:2MVQYX55UDASQRRZ3MRDLFRVGW

not attested not anchored not stored refs pending

Approximate message-passing with spatially coupled structured operators, with applications to compressed sensing and sparse superposition codes

Christophe Sch\"ulke, Florent Krzakala, Jean Barbier

arxiv:1312.1740 v5 · 2013-12-06 · cs.IT · cond-mat.dis-nn · 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{2MVQYX55UDASQRRZ3MRDLFRVGW}

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	2026-05-18T02:07:32.135795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d32b0c5fbda0c1284639db2235963535bc50f0b6ec62cceffb3dc65f71343d03

Aliases

arxiv: 1312.1740 · arxiv_version: 1312.1740v5 · doi: 10.48550/arxiv.1312.1740 · pith_short_12: 2MVQYX55UDAS · pith_short_16: 2MVQYX55UDASQRRZ · pith_short_8: 2MVQYX55

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/2MVQYX55UDASQRRZ3MRDLFRVGW \
  | 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: d32b0c5fbda0c1284639db2235963535bc50f0b6ec62cceffb3dc65f71343d03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c55061342b6975fb0f4e93f3ea25abeb0bc7f85c0ee964cd9a643e2c032f102",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-12-06T00:32:09Z",
    "title_canon_sha256": "29b5612bfcf80be46f85f512b30e49041caf52074c65bc88dc263826c4bca5a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1740",
    "kind": "arxiv",
    "version": 5
  }
}