Pith Number

pith:J4PRFXMA

pith:2019:J4PRFXMA5ZCEWD3YF2OGALIPA5

not attested not anchored not stored refs pending

Time-space noncommutativity and Casimir effect

E. Harikumar, Suman Kumar Panja, Vishnu Rajagopal

arxiv:1908.04481 v2 · 2019-08-13 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J4PRFXMA5ZCEWD3YF2OGALIPA5}

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	2026-07-05T00:21:14.552981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f1f12dd80ee444b0f782e9c602d0f075e9c453b9b5c3a49cb69225fb6f624aa

Aliases

arxiv: 1908.04481 · arxiv_version: 1908.04481v2 · doi: 10.48550/arxiv.1908.04481 · pith_short_12: J4PRFXMA5ZCE · pith_short_16: J4PRFXMA5ZCEWD3Y · pith_short_8: J4PRFXMA

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/J4PRFXMA5ZCEWD3YF2OGALIPA5 \
  | 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: 4f1f12dd80ee444b0f782e9c602d0f075e9c453b9b5c3a49cb69225fb6f624aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f00cf5cf83cfb8c817984235915da3f674263fa134a875ff7a1af3a24f679f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-08-13T04:15:13Z",
    "title_canon_sha256": "a650eb1f0539094b4fc1485ca81428449608dd36f754ce1114744d8d350788fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04481",
    "kind": "arxiv",
    "version": 2
  }
}