Pith Number

pith:Y6BWAPGF

pith:2016:Y6BWAPGFWIZX6H4QVOB6F3AVZF

not attested not anchored not stored refs pending

The Number Behind the Simplest SIC-POVM

Ingemar Bengtsson

arxiv:1611.09087 v2 · 2016-11-28 · 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{Y6BWAPGFWIZX6H4QVOB6F3AVZF}

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	2026-05-18T00:47:07.873693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c783603cc5b2337f1f90ab83e2ec15c966cee9c0b00a795a2a7a2a8780f88642

Aliases

arxiv: 1611.09087 · arxiv_version: 1611.09087v2 · doi: 10.48550/arxiv.1611.09087 · pith_short_12: Y6BWAPGFWIZX · pith_short_16: Y6BWAPGFWIZX6H4Q · pith_short_8: Y6BWAPGF

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/Y6BWAPGFWIZX6H4QVOB6F3AVZF \
  | 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: c783603cc5b2337f1f90ab83e2ec15c966cee9c0b00a795a2a7a2a8780f88642

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30745530e8c17240f9d52573011e1e99ed38bade70a2e72ed28f57622fd37695",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-11-28T11:53:44Z",
    "title_canon_sha256": "3ada733a7de1f8dfac54aa2ef73fcd2713152674cfb970b840e7dba44d4a7b33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.09087",
    "kind": "arxiv",
    "version": 2
  }
}