Pith Number

pith:7VRMP6QN

pith:2015:7VRMP6QN7MWQA5VR2XXAA7LYJM

not attested not anchored not stored refs pending

Capacity of Hexagonal Checkerboard Codes

Jie Ding, Mohammad Noshad, Vahid Tarokh, Zhun Deng

arxiv:1506.02163 v2 · 2015-06-06 · 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{7VRMP6QN7MWQA5VR2XXAA7LYJM}

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	2026-05-18T00:47:29.583014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd62c7fa0dfb2d0076b1d5ee007d784b193b0f16368886bf29b8ccf458bace70

Aliases

arxiv: 1506.02163 · arxiv_version: 1506.02163v2 · doi: 10.48550/arxiv.1506.02163 · pith_short_12: 7VRMP6QN7MWQ · pith_short_16: 7VRMP6QN7MWQA5VR · pith_short_8: 7VRMP6QN

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/7VRMP6QN7MWQA5VR2XXAA7LYJM \
  | 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: fd62c7fa0dfb2d0076b1d5ee007d784b193b0f16368886bf29b8ccf458bace70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eff14f6f7fcf46db65537c13d3e7e1263e75598a20993902d750b5880c210f10",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-06-06T15:18:15Z",
    "title_canon_sha256": "6d7648b7efad192c22883669082bdaeba8f982e5226c87ddfd9ec446458fab14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02163",
    "kind": "arxiv",
    "version": 2
  }
}