Pith Number

pith:KCHPND7D

pith:2012:KCHPND7DKQWNO3IW5N2FDGOPGO

not attested not anchored not stored refs pending

Noncommutative spectral geometry: A guided tour for theoretical physicists

Mairi Sakellariadou (King's College London)

arxiv:1204.5772 v1 · 2012-04-25 · hep-th · gr-qc · hep-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{KCHPND7DKQWNO3IW5N2FDGOPGO}

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	2026-05-18T03:56:47.244540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

508ef68fe3542cd76d16eb745199cf33976acd151473f37aaac0bcc4bef65985

Aliases

arxiv: 1204.5772 · arxiv_version: 1204.5772v1 · doi: 10.48550/arxiv.1204.5772 · pith_short_12: KCHPND7DKQWN · pith_short_16: KCHPND7DKQWNO3IW · pith_short_8: KCHPND7D

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/KCHPND7DKQWNO3IW5N2FDGOPGO \
  | 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: 508ef68fe3542cd76d16eb745199cf33976acd151473f37aaac0bcc4bef65985

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7138a14f2531ee39c9c2cdac9e1e47cb43239bb5c37bd2b63ef3e9c2bccefc65",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-04-25T21:17:04Z",
    "title_canon_sha256": "bbcecdfaade545aa88eb5698fd4147c975da85ca0e7cab98a579da856fef6a55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5772",
    "kind": "arxiv",
    "version": 1
  }
}