Pith Number

pith:6RWVB5JK

pith:2021:6RWVB5JK5632YW5R6L3BKNOFCJ

not attested not anchored not stored refs pending

Quantum Constraint Problems can be complete for $\mathsf{BQP}$, $\mathsf{QCMA}$, and more

Alex Meiburg

arxiv:2101.08381 v3 · 2021-01-21 · quant-ph · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6RWVB5JK5632YW5R6L3BKNOFCJ}

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.

Cited by

1 paper in Pith

Quantum SAT Problems with Finite Sets of Projectors are Complete for a Plethora of Classes

Receipt and verification

First computed	2026-07-05T02:59:36.227061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f46d50f52aefb7ac5bb1f2f61535c5125a408e360f47d41d4d9cb627dc054047

Aliases

arxiv: 2101.08381 · arxiv_version: 2101.08381v3 · doi: 10.48550/arxiv.2101.08381 · pith_short_12: 6RWVB5JK5632 · pith_short_16: 6RWVB5JK5632YW5R · pith_short_8: 6RWVB5JK

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/6RWVB5JK5632YW5R6L3BKNOFCJ \
  | 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: f46d50f52aefb7ac5bb1f2f61535c5125a408e360f47d41d4d9cb627dc054047

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ace4b9f1566da5123c9a458c56cb8cf5e62c0be506a842bbcecaa144b59a3d0",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-01-21T01:08:04Z",
    "title_canon_sha256": "40af327792a030fe8e9ad808c109e9012d2f7340fe2bee638eb9009310118889"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.08381",
    "kind": "arxiv",
    "version": 3
  }
}