Pith Number

pith:I7DDF6UR

pith:2016:I7DDF6URN3NOV7VIBSVB26UH7S

not attested not anchored not stored refs pending

Sharper Upper Bounds for Unbalanced Uniquely Decodable Code Pairs

Jesper Nederlof, Mikko Koivisto, Per Austrin, Petteri Kaski

arxiv:1605.00462 v1 · 2016-05-02 · cs.IT · cs.DM · 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{I7DDF6URN3NOV7VIBSVB26UH7S}

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	2026-05-18T01:15:55.715343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47c632fa916edaeafea80caa1d7a87fc95e20f2364fa258410c4dca1378cad74

Aliases

arxiv: 1605.00462 · arxiv_version: 1605.00462v1 · doi: 10.48550/arxiv.1605.00462 · pith_short_12: I7DDF6URN3NO · pith_short_16: I7DDF6URN3NOV7VI · pith_short_8: I7DDF6UR

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/I7DDF6URN3NOV7VIBSVB26UH7S \
  | 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: 47c632fa916edaeafea80caa1d7a87fc95e20f2364fa258410c4dca1378cad74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0814945deb36478aa509e5f98de88a42a61a1bca009eed9440975ead6b7b39f",
    "cross_cats_sorted": [
      "cs.DM",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-05-02T12:58:13Z",
    "title_canon_sha256": "ba0a4f3425452a30835e39b7475ef5b627ccb62ae8b69109c9f7ea3514dcaff6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.00462",
    "kind": "arxiv",
    "version": 1
  }
}