Pith Number

pith:Y5JXQ4MN

pith:2014:Y5JXQ4MNAMBAYXPIYKR7ZADHU5

not attested not anchored not stored refs pending

Frenet-Serret formalism for null world lines

Andrea Geralico, Donato Bini, Robert T. Jantzen

arxiv:1408.4281 v1 · 2014-08-19 · 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{Y5JXQ4MNAMBAYXPIYKR7ZADHU5}

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	2026-05-18T01:42:17.472666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c75378718d03020c5de8c2a3fc8067a768dae90a132b5146cdf91620e49eff4c

Aliases

arxiv: 1408.4281 · arxiv_version: 1408.4281v1 · doi: 10.48550/arxiv.1408.4281 · pith_short_12: Y5JXQ4MNAMBA · pith_short_16: Y5JXQ4MNAMBAYXPI · pith_short_8: Y5JXQ4MN

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/Y5JXQ4MNAMBAYXPIYKR7ZADHU5 \
  | 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: c75378718d03020c5de8c2a3fc8067a768dae90a132b5146cdf91620e49eff4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a61d00e3c04a3fb8dbac80c7f7ee5f546f16d10807144f64db6f4c69c11f4158",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-08-19T10:21:40Z",
    "title_canon_sha256": "2dedb886e4763b2ca269268f8ee12b1453241acbfb0940cbdab8a195a7380f84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4281",
    "kind": "arxiv",
    "version": 1
  }
}