Pith Number

pith:DJNHO6HE

pith:2016:DJNHO6HEQ7ERFVV55ZXXTPACGM

not attested not anchored not stored refs pending

Multi-step quantum algorithm for solving the 3-bit exact cover problem

Hefeng Wang

arxiv:1603.05826 v4 · 2016-03-18 · quant-ph · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DJNHO6HEQ7ERFVV55ZXXTPACGM}

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	2026-05-18T00:07:51.155301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a5a7778e487c912d6bdee6f79bc023312ff48bc945b796e9a5a1c9e0a38d0d4

Aliases

arxiv: 1603.05826 · arxiv_version: 1603.05826v4 · doi: 10.48550/arxiv.1603.05826 · pith_short_12: DJNHO6HEQ7ER · pith_short_16: DJNHO6HEQ7ERFVV5 · pith_short_8: DJNHO6HE

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/DJNHO6HEQ7ERFVV55ZXXTPACGM \
  | 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: 1a5a7778e487c912d6bdee6f79bc023312ff48bc945b796e9a5a1c9e0a38d0d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6df04522fefc87ca44f83e6b1c2700cc8a7f80075958c7c7548ba79ad7956b0a",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-03-18T10:43:11Z",
    "title_canon_sha256": "075ad61ac7f40ca53c7126618881362219afc4800cdd962ec2d4f10406a8bdc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.05826",
    "kind": "arxiv",
    "version": 4
  }
}