Pith Number

pith:YIORKUHB

pith:2009:YIORKUHBCGEPW5FZEWLKXKAERB

not attested not anchored not stored refs pending

Trapping Set Enumerators for Repeat Multiple Accumulate Code Ensembles

Alexandre Graell i Amat, Christian Koller, Daniel J. Costello Jr, Joerg Kliewer

arxiv:0905.3733 v1 · 2009-05-22 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YIORKUHBCGEPW5FZEWLKXKAERB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:59:11.340833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c21d1550e11188fb74b92596aba804887bbcbbf102d17656231b4924922fb0cd

Aliases

arxiv: 0905.3733 · arxiv_version: 0905.3733v1 · doi: 10.48550/arxiv.0905.3733 · pith_short_12: YIORKUHBCGEP · pith_short_16: YIORKUHBCGEPW5FZ · pith_short_8: YIORKUHB

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/YIORKUHBCGEPW5FZEWLKXKAERB \
  | 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: c21d1550e11188fb74b92596aba804887bbcbbf102d17656231b4924922fb0cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87ffc1c57dc52c667381c5f870a8b45e2dc8caed9cb141f895db69b452a114a9",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-05-22T17:40:16Z",
    "title_canon_sha256": "7c2b8bc854194fcc355306ae1afb630f33b331301d43fd2aa9965fd79a8dc98d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3733",
    "kind": "arxiv",
    "version": 1
  }
}