Pith Number

pith:GIIN5OZB

pith:2012:GIIN5OZB2MYDCHX63LBCSASGTG

not attested not anchored not stored refs pending

Re-encoding reformulation and application to Welch-Berlekamp algorithm

Morgan Barbier (GREYC)

arxiv:1212.5554 v2 · 2012-12-21 · 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{GIIN5OZB2MYDCHX63LBCSASGTG}

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	2026-05-18T02:47:53.151372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3210debb21d330311efedac2290246998d45951480c13c94c980f58de5efe589

Aliases

arxiv: 1212.5554 · arxiv_version: 1212.5554v2 · doi: 10.48550/arxiv.1212.5554 · pith_short_12: GIIN5OZB2MYD · pith_short_16: GIIN5OZB2MYDCHX6 · pith_short_8: GIIN5OZB

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/GIIN5OZB2MYDCHX63LBCSASGTG \
  | 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: 3210debb21d330311efedac2290246998d45951480c13c94c980f58de5efe589

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f462635d6ec44afb9f2736a73baf4b30ed115128065e54843ef8d7fe00680880",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-12-21T18:53:42Z",
    "title_canon_sha256": "525a717da6f4aaf4ce42f986bf456b85eb6c1c6202cace302926af510bfceb87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5554",
    "kind": "arxiv",
    "version": 2
  }
}