Pith Number

pith:M6T6LESD

pith:2007:M6T6LESDUQHBM5PHJHAKPXYW4Z

not attested not anchored not stored refs pending

Fermi-Frenet coordinates for space-like curves

Karl-Peter Marzlin, Michael S. Underwood

arxiv:0706.3224 v2 · 2007-06-21 · 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{M6T6LESDUQHBM5PHJHAKPXYW4Z}

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	2026-05-18T02:35:30.899955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67a7e59243a40e1675e749c0a7df16e65567065b6bb9c2b59a83be9e552de133

Aliases

arxiv: 0706.3224 · arxiv_version: 0706.3224v2 · doi: 10.48550/arxiv.0706.3224 · pith_short_12: M6T6LESDUQHB · pith_short_16: M6T6LESDUQHBM5PH · pith_short_8: M6T6LESD

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/M6T6LESDUQHBM5PHJHAKPXYW4Z \
  | 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: 67a7e59243a40e1675e749c0a7df16e65567065b6bb9c2b59a83be9e552de133

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6fd1d30e3f76d8207c38c2daa6bc12a2c9a92da045487aa7ad422105bd0a147",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-06-21T21:11:34Z",
    "title_canon_sha256": "f293bdee5ffc7ea77b85b918edd1a77c858fc966868b116a91d6f534dfdfeb23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.3224",
    "kind": "arxiv",
    "version": 2
  }
}