Pith Number

pith:7FTJHJBB

pith:2019:7FTJHJBBMTWBCK5ULLLZMXMMQA

not attested not anchored not stored refs pending

A Note on the "Third Life of Quantum Logic"

Christian Herrmann

arxiv:1908.02639 v3 · 2019-08-07 · math.LO · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FTJHJBBMTWBCK5ULLLZMXMMQA}

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	2026-07-05T00:06:10.277244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f96693a42164ec112bb45ad7965d8c8027be493b980046344f8ea118a4b4e6b3

Aliases

arxiv: 1908.02639 · arxiv_version: 1908.02639v3 · doi: 10.48550/arxiv.1908.02639 · pith_short_12: 7FTJHJBBMTWB · pith_short_16: 7FTJHJBBMTWBCK5U · pith_short_8: 7FTJHJBB

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/7FTJHJBBMTWBCK5ULLLZMXMMQA \
  | 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: f96693a42164ec112bb45ad7965d8c8027be493b980046344f8ea118a4b4e6b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f27262bc175f4eafae14a15310b3c1c43128d301f69fff34e0bb13ec8fe617cc",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-08-07T13:59:34Z",
    "title_canon_sha256": "281290524cedf538ca3c0820424a49ba7aa20f8e260ed79621e38da0433100f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02639",
    "kind": "arxiv",
    "version": 3
  }
}