Pith Number

pith:RMJJAPIU

pith:2015:RMJJAPIU6NTRUXTGAR7LEHQYRC

not attested not anchored not stored refs pending

Spinning particles in vacuum spacetimes of different curvature types: Natural reference tetrads, and massless particles

Old\v{r}ich Semer\'ak

arxiv:1512.06253 v1 · 2015-12-19 · 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{RMJJAPIU6NTRUXTGAR7LEHQYRC}

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	2026-05-18T01:24:01.011023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b12903d14f3671a5e66047eb21e1888bd56baf2985ddb245e4d604087daed2b

Aliases

arxiv: 1512.06253 · arxiv_version: 1512.06253v1 · doi: 10.48550/arxiv.1512.06253 · pith_short_12: RMJJAPIU6NTR · pith_short_16: RMJJAPIU6NTRUXTG · pith_short_8: RMJJAPIU

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/RMJJAPIU6NTRUXTGAR7LEHQYRC \
  | 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: 8b12903d14f3671a5e66047eb21e1888bd56baf2985ddb245e4d604087daed2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f62bc07a6f2acb4b06afdf3303a8b04037c51275555e7b4e37fc31d65acbbe00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-12-19T14:09:35Z",
    "title_canon_sha256": "112cae01892fe13302f7e383272e672f2556f050d1f18b5d0435a60c99c1f609"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06253",
    "kind": "arxiv",
    "version": 1
  }
}