Pith Number

pith:L2PPC2RW

pith:2012:L2PPC2RWGBNV2GX6JZCTMFRDWY

not attested not anchored not stored refs pending

On the Hardness of Entropy Minimization and Related Problems

Ivan Stanojevi\'c, Mladen Kova\v{c}evi\'c, Vojin \v{S}enk

arxiv:1207.1238 v1 · 2012-07-05 · cs.IT · cs.CC · 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{L2PPC2RWGBNV2GX6JZCTMFRDWY}

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	2026-05-18T03:03:44.790605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e9ef16a36305b5d1afe4e45361623b635c9c73038bd5c1b003ca83dc0e46723

Aliases

arxiv: 1207.1238 · arxiv_version: 1207.1238v1 · doi: 10.48550/arxiv.1207.1238 · pith_short_12: L2PPC2RWGBNV · pith_short_16: L2PPC2RWGBNV2GX6 · pith_short_8: L2PPC2RW

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/L2PPC2RWGBNV2GX6JZCTMFRDWY \
  | 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: 5e9ef16a36305b5d1afe4e45361623b635c9c73038bd5c1b003ca83dc0e46723

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dd16b7781c1cc23bfaee4bd54dd7eee8183bbd5e969163e32c2d9ac1e067754",
    "cross_cats_sorted": [
      "cs.CC",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-05T12:25:06Z",
    "title_canon_sha256": "9f40dc506691af1b55020b16a3d6124aa31ca880a8bb93ee6074e9d7179e2c50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1238",
    "kind": "arxiv",
    "version": 1
  }
}