Pith Number

pith:5TC5C3RB

pith:2009:5TC5C3RB7634ZY2L4WBEAHAAON

not attested not anchored not stored refs pending

Growth Rate of the Weight Distribution of Doubly-Generalized LDPC Codes: General Case and Efficient Evaluation

Enrico Paolini, Marco Chiani, Marc P. C. Fossorier, Mark F. Flanagan

arxiv:0907.4885 v1 · 2009-07-28 · cs.IT · math.IT

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

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	2026-05-18T00:57:58.087884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecc5d16e21ffb7cce34be582401c00737b7598dd93fcad614d82b488454b8819

Aliases

arxiv: 0907.4885 · arxiv_version: 0907.4885v1 · doi: 10.48550/arxiv.0907.4885 · pith_short_12: 5TC5C3RB7634 · pith_short_16: 5TC5C3RB7634ZY2L · pith_short_8: 5TC5C3RB

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/5TC5C3RB7634ZY2L4WBEAHAAON \
  | 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: ecc5d16e21ffb7cce34be582401c00737b7598dd93fcad614d82b488454b8819

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54ba94e41862a2b1047e90cd61c24cbc25cd8c68d60f48377231bd90cbd86bc5",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-07-28T10:57:21Z",
    "title_canon_sha256": "f7f08eebb4195fcde6b2012eb166ba2718de3145403e151ddd143a5664074901"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4885",
    "kind": "arxiv",
    "version": 1
  }
}