Pith Number

pith:QSIKXUJK

pith:2011:QSIKXUJKK7C6VHIYF3ATZOFSLI

not attested not anchored not stored refs pending

Semiclassical approximation and noncommutative geometry

Thierry Paul (CMLS-EcolePolytechnique)

arxiv:1108.5495 v3 · 2011-08-28 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QSIKXUJKK7C6VHIYF3ATZOFSLI}

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	2026-05-18T03:59:49.446041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8490abd12a57c5ea9d182ec13cb8b25a022c0994aaed05c764e5df9caafecf05

Aliases

arxiv: 1108.5495 · arxiv_version: 1108.5495v3 · doi: 10.48550/arxiv.1108.5495 · pith_short_12: QSIKXUJKK7C6 · pith_short_16: QSIKXUJKK7C6VHIY · pith_short_8: QSIKXUJK

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/QSIKXUJKK7C6VHIYF3ATZOFSLI \
  | 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: 8490abd12a57c5ea9d182ec13cb8b25a022c0994aaed05c764e5df9caafecf05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d201f239bda6854cd788eec351165b5b438a44d6f5d3ff27cec08b39c37e2335",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-08-28T06:26:33Z",
    "title_canon_sha256": "4ebabb5b70282ae6bb111b956d2312225178e1da6f4eb4b1ad730777a16df617"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5495",
    "kind": "arxiv",
    "version": 3
  }
}