Pith Number

pith:5FOJOEKF

pith:2012:5FOJOEKFKMMOASOOEUNRJDJQTQ

not attested not anchored not stored refs pending

Towards Optimality in Transform Coding

Emrah Akyol, Kenneth Rose

arxiv:1206.2994 v3 · 2012-06-14 · 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{5FOJOEKFKMMOASOOEUNRJDJQTQ}

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	2026-05-18T03:53:19.469068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e95c9711455318e049ce251b148d309c03f63bb4b7b12aafdc7f0105ebfd48b1

Aliases

arxiv: 1206.2994 · arxiv_version: 1206.2994v3 · doi: 10.48550/arxiv.1206.2994 · pith_short_12: 5FOJOEKFKMMO · pith_short_16: 5FOJOEKFKMMOASOO · pith_short_8: 5FOJOEKF

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/5FOJOEKFKMMOASOOEUNRJDJQTQ \
  | 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: e95c9711455318e049ce251b148d309c03f63bb4b7b12aafdc7f0105ebfd48b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80eed47207fe9087112d69e091a4d9742740e645f8fad1868226dc8036f1a853",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-06-14T04:03:35Z",
    "title_canon_sha256": "c22e0e745e5e24c5154096a80e10219b56466d6bc8a61d12d4f53fc984b0b3c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2994",
    "kind": "arxiv",
    "version": 3
  }
}