Pith Number

pith:W2S4FTLC

pith:2012:W2S4FTLCQP3CJQ3MYETLZYZIBV

not attested not anchored not stored refs pending

Optical Solver of Combinatorial Problems: Nano-Technological Approach

Alexandr Palagushkin, Boris Kryzhanovsky, Eyal Cohen, Michael Rosenblit, Sergey Frenkel, Shlomi Dolev, Victor Zakharov

arxiv:1205.0040 v1 · 2012-04-30 · cs.ET

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W2S4FTLCQP3CJQ3MYETLZYZIBV}

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	2026-05-18T01:57:42.042498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6a5c2cd6283f624c36cc126bce3280d44f4745c620af07067d1cf9b5fe4d868

Aliases

arxiv: 1205.0040 · arxiv_version: 1205.0040v1 · doi: 10.48550/arxiv.1205.0040 · pith_short_12: W2S4FTLCQP3C · pith_short_16: W2S4FTLCQP3CJQ3M · pith_short_8: W2S4FTLC

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/W2S4FTLCQP3CJQ3MYETLZYZIBV \
  | 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: b6a5c2cd6283f624c36cc126bce3280d44f4745c620af07067d1cf9b5fe4d868

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75b2fb160798d118510a054cc6611f7c75023a18bc00ebb7054f48a2e8466dc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2012-04-30T21:48:05Z",
    "title_canon_sha256": "53b727439e8f2567682d8d0d89d0f76b27637084100315deee2ad4f384e95884"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0040",
    "kind": "arxiv",
    "version": 1
  }
}