Pith Number

pith:DFAFFYTI

pith:2016:DFAFFYTIMP2TIOCQEZISGRM6RC

not attested not anchored not stored refs pending

Optimal Finite-Length and Asymptotic Index Codes for Five or Fewer Receivers

Lawrence Ong

arxiv:1606.05982 v2 · 2016-06-20 · 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{DFAFFYTIMP2TIOCQEZISGRM6RC}

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	2026-05-18T00:36:09.752415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

194052e26863f5343850265123459e888abe90cce12ba09da1fc1907e3c1e28e

Aliases

arxiv: 1606.05982 · arxiv_version: 1606.05982v2 · doi: 10.48550/arxiv.1606.05982 · pith_short_12: DFAFFYTIMP2T · pith_short_16: DFAFFYTIMP2TIOCQ · pith_short_8: DFAFFYTI

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/DFAFFYTIMP2TIOCQEZISGRM6RC \
  | 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: 194052e26863f5343850265123459e888abe90cce12ba09da1fc1907e3c1e28e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40e6de566d5d71455db2e85fc2332d8e04ad7d1e2cc943334adfbb28a197c690",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-06-20T06:28:57Z",
    "title_canon_sha256": "5330d89a5dfda0c69ad60d0033c3efc2b5c8f9c7d8d884b1c1ee7d2bc694a972"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.05982",
    "kind": "arxiv",
    "version": 2
  }
}