Pith Number

pith:PDL4UOIO

pith:2003:PDL4UOIOZ2GVQPGEOJWBPEFW7C

not attested not anchored not stored refs pending

On deciding whether a Boolean function is constant or not

Fabio Benatti, Luca Marinatto

arxiv:quant-ph/0304073 v1 · 2003-04-10 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDL4UOIOZ2GVQPGEOJWBPEFW7C}

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	2026-05-18T01:05:04.041565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78d7ca390ece8d583cc4726c1790b6f8b57dddb88f6d5d1ab56858d6f9cad96b

Aliases

arxiv: quant-ph/0304073 · arxiv_version: quant-ph/0304073v1 · doi: 10.48550/arxiv.quant-ph/0304073 · pith_short_12: PDL4UOIOZ2GV · pith_short_16: PDL4UOIOZ2GVQPGE · pith_short_8: PDL4UOIO

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/PDL4UOIOZ2GVQPGEOJWBPEFW7C \
  | 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: 78d7ca390ece8d583cc4726c1790b6f8b57dddb88f6d5d1ab56858d6f9cad96b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bd697bf5dad588e1aa7344f3e0003dec14a128ffe7ea92c565704557a4568b8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-04-10T15:08:23Z",
    "title_canon_sha256": "17f37f7ce2bcdb41e1f7fe19f7b61e339d4218308ccd1c885746bf37afaa5f72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0304073",
    "kind": "arxiv",
    "version": 1
  }
}