Pith Number

pith:4YUONJMV

pith:2022:4YUONJMV2HMBL4QEXF6HNW6OYG

not attested not anchored not stored refs pending

Constrained Optimal Querying: Huffman Coding and Beyond

Jichen Sun, Shengkang Chen, Shuyuan Zhang

arxiv:2210.04013 v1 · 2022-10-08 · 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{4YUONJMV2HMBL4QEXF6HNW6OYG}

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	2026-07-05T05:04:34.966134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e628e6a595d1d815f204b97c76dbcec1be314f2e8caa683cbe91d6ac2b400a36

Aliases

arxiv: 2210.04013 · arxiv_version: 2210.04013v1 · doi: 10.48550/arxiv.2210.04013 · pith_short_12: 4YUONJMV2HMB · pith_short_16: 4YUONJMV2HMBL4QE · pith_short_8: 4YUONJMV

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/4YUONJMV2HMBL4QEXF6HNW6OYG \
  | 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: e628e6a595d1d815f204b97c76dbcec1be314f2e8caa683cbe91d6ac2b400a36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e6103cb4e039ef2dc72047e7f3ea1f1683d49e4914b9641278ed3e401af6e46",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2022-10-08T12:54:00Z",
    "title_canon_sha256": "43cdabd91971826ba489816794cd7a6d11842bb2e62b671ab95c1c80100cada3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.04013",
    "kind": "arxiv",
    "version": 1
  }
}