Pith Number

pith:4JOLXNPG

pith:2012:4JOLXNPGIIDL4MRCPFGEUVSC7T

not attested not anchored not stored refs pending

Variable Length Lossless Coding for Variational Distance Class: An Optimal Merging Algorithm

Charalambos D. Charalambous, Sergey Loyka, Themistoklis Charalambous

arxiv:1202.0136 v2 · 2012-02-01 · 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{4JOLXNPGIIDL4MRCPFGEUVSC7T}

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	2026-05-18T03:35:38.667591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e25cbbb5e64206be3222794c4a5642fcdc8bd34b914561d83e7335de12eebecb

Aliases

arxiv: 1202.0136 · arxiv_version: 1202.0136v2 · doi: 10.48550/arxiv.1202.0136 · pith_short_12: 4JOLXNPGIIDL · pith_short_16: 4JOLXNPGIIDL4MRC · pith_short_8: 4JOLXNPG

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/4JOLXNPGIIDL4MRCPFGEUVSC7T \
  | 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: e25cbbb5e64206be3222794c4a5642fcdc8bd34b914561d83e7335de12eebecb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73118b907e475f53986eb80d7c8bbf3215922f057e624817ecd52ecf9c9fb84e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-02-01T10:19:36Z",
    "title_canon_sha256": "0859071d9fd1d290094978b2208fb7825aad4e2bc526294c38bf523790c1d92d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.0136",
    "kind": "arxiv",
    "version": 2
  }
}