Pith Number

pith:JGRY3HGP

pith:2010:JGRY3HGPQXWBV33J4WMWSUS37X

not attested not anchored not stored refs pending

A New Construction for Constant Weight Codes

Alexander Vardy, Tuvi Etzion

arxiv:1004.1503 v3 · 2010-04-09 · 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{JGRY3HGPQXWBV33J4WMWSUS37X}

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	2026-05-18T02:24:16.883733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49a38d9ccf85ec1aef69e59969525bfdfee9f454014e1c776b16ad3a95bbdcd0

Aliases

arxiv: 1004.1503 · arxiv_version: 1004.1503v3 · doi: 10.48550/arxiv.1004.1503 · pith_short_12: JGRY3HGPQXWB · pith_short_16: JGRY3HGPQXWBV33J · pith_short_8: JGRY3HGP

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/JGRY3HGPQXWBV33J4WMWSUS37X \
  | 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: 49a38d9ccf85ec1aef69e59969525bfdfee9f454014e1c776b16ad3a95bbdcd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58ee52c792cd24fa565fc556ea6e7f8131f56474a6035e0643b94be0778b4545",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-04-09T09:13:34Z",
    "title_canon_sha256": "d42f6450ed152b21a836e49f3894d0c44ecd068e3f3506848b20ec972a0d6e18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1503",
    "kind": "arxiv",
    "version": 3
  }
}