Pith Number

pith:EXXUXRZE

pith:2022:EXXUXRZEADGQMXBA2YXAJNXGHY

not attested not anchored not stored refs pending

Classification of four-rebit states

Alessio Marrani, Heiko Dietrich, Marcos Origlia, Willem A. de Graaf

arxiv:2201.11777 v2 · 2022-01-27 · quant-ph · math-ph · math.DG · math.MP · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EXXUXRZEADGQMXBA2YXAJNXGHY}

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	2026-07-05T03:53:17.185088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25ef4bc72400cd065c20d62e04b6e63e0d8dac3f552d097b2e418309becd0735

Aliases

arxiv: 2201.11777 · arxiv_version: 2201.11777v2 · doi: 10.48550/arxiv.2201.11777 · pith_short_12: EXXUXRZEADGQ · pith_short_16: EXXUXRZEADGQMXBA · pith_short_8: EXXUXRZE

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/EXXUXRZEADGQMXBA2YXAJNXGHY \
  | 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: 25ef4bc72400cd065c20d62e04b6e63e0d8dac3f552d097b2e418309becd0735

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e34bc43b3af11236dde24adb6a4c45f92a6bcd81b814910252adaec3881114d1",
    "cross_cats_sorted": [
      "math-ph",
      "math.DG",
      "math.MP",
      "math.RT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-01-27T19:40:21Z",
    "title_canon_sha256": "c58eeaec4bd4d9e238206f73416053a629932ab4762b82267014cefbde5be7ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.11777",
    "kind": "arxiv",
    "version": 2
  }
}