Pith Number

pith:CA56K75C

pith:2009:CA56K75CNDZO37SN3FPFEDIY5X

not attested not anchored not stored refs pending

Iterative Decoding on Multiple Tanner Graphs Using Random Edge Local Complementation

Constanza Riera, Eirik Rosnes, Joakim Grahl Knudsen, Lars Eirik Danielsen, Matthew G. Parker

arxiv:0905.4164 v1 · 2009-05-26 · cs.IT · 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{CA56K75CNDZO37SN3FPFEDIY5X}

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	2026-05-18T00:58:48.094995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

103be57fa268f2edfe4dd95e520d18edd8ad9456b03a45391eb5f5f29b766345

Aliases

arxiv: 0905.4164 · arxiv_version: 0905.4164v1 · doi: 10.48550/arxiv.0905.4164 · pith_short_12: CA56K75CNDZO · pith_short_16: CA56K75CNDZO37SN · pith_short_8: CA56K75C

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/CA56K75CNDZO37SN3FPFEDIY5X \
  | 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: 103be57fa268f2edfe4dd95e520d18edd8ad9456b03a45391eb5f5f29b766345

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e26eb00c4c93e6f664ea2a1abb4cb73afabfcb3b08e706a4f9bf516a525cd459",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-05-26T11:11:19Z",
    "title_canon_sha256": "f17664e30a0a9c9899ecdd56055d2fff707a4813a88423af26e550032a92202d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4164",
    "kind": "arxiv",
    "version": 1
  }
}