Pith Number

pith:TR4THNGR

pith:2024:TR4THNGRX5HM5CZRY4J3YU7V4B

not attested not anchored not stored refs pending

Non-projective two-weight codes

Sascha Kurz

arxiv:2402.16643 v2 · 2024-02-26 · math.CO · 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{TR4THNGRX5HM5CZRY4J3YU7V4B}

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	2026-07-05T07:50:07.551829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c7933b4d1bf4ece8b31c713bc53f5e07bcdaa08dc883089972ccbfe5f70ebde

Aliases

arxiv: 2402.16643 · arxiv_version: 2402.16643v2 · doi: 10.48550/arxiv.2402.16643 · pith_short_12: TR4THNGRX5HM · pith_short_16: TR4THNGRX5HM5CZR · pith_short_8: TR4THNGR

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/TR4THNGRX5HM5CZRY4J3YU7V4B \
  | 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: 9c7933b4d1bf4ece8b31c713bc53f5e07bcdaa08dc883089972ccbfe5f70ebde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec636067867db34da1da25d263f17056e304ab09717f8f77111d900fd6af7d8e",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2024-02-26T15:13:41Z",
    "title_canon_sha256": "396261df19c86c3ba0a97a51d0cd07d6f9911d849afb4dc7d1b841faf12274eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.16643",
    "kind": "arxiv",
    "version": 2
  }
}