Pith Number

pith:RU5L2IPE

pith:2004:RU5L2IPE62ZGSO2QFJJZYSNRF3

not attested not anchored not stored refs pending

Massive spinor fields in flat spacetimes with non-trivial topology

M. Nouri-Zonoz, N. Ahmadi

arxiv:gr-qc/0412133 v2 · 2004-12-30 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RU5L2IPE62ZGSO2QFJJZYSNRF3}

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	2026-05-18T04:18:02.394210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d3abd21e4f6b2693b502a539c49b12ee3a8173260bab9dddb93cdc50a459212

Aliases

arxiv: gr-qc/0412133 · arxiv_version: gr-qc/0412133v2 · doi: 10.48550/arxiv.gr-qc/0412133 · pith_short_12: RU5L2IPE62ZG · pith_short_16: RU5L2IPE62ZGSO2Q · pith_short_8: RU5L2IPE

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/RU5L2IPE62ZGSO2QFJJZYSNRF3 \
  | 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: 8d3abd21e4f6b2693b502a539c49b12ee3a8173260bab9dddb93cdc50a459212

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcfe75e877cd4be7cf94a3b4a81e8aa3e0002dad9b6c5f3701f52351e3be9bcd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-12-30T14:15:05Z",
    "title_canon_sha256": "d62698ae67cada2f226b0a12e0297e226359be5383c1c7354cfe6ab9bebb1241"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0412133",
    "kind": "arxiv",
    "version": 2
  }
}