Pith Number

pith:7OV7FBB3

pith:2012:7OV7FBB3LDLOUHR3JJU4IDQJKK

not attested not anchored not stored refs pending

Multi-step Fermi normal coordinates

Eleni-Alexandra Kontou, Ken D. Olum

arxiv:1207.4493 v1 · 2012-07-18 · 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{7OV7FBB3LDLOUHR3JJU4IDQJKK}

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	2026-05-18T01:56:16.586103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbabf2843b58d6ea1e3b4a69c40e0952829ff470be570d4df463dae1f6a781a4

Aliases

arxiv: 1207.4493 · arxiv_version: 1207.4493v1 · doi: 10.48550/arxiv.1207.4493 · pith_short_12: 7OV7FBB3LDLO · pith_short_16: 7OV7FBB3LDLOUHR3 · pith_short_8: 7OV7FBB3

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/7OV7FBB3LDLOUHR3JJU4IDQJKK \
  | 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: fbabf2843b58d6ea1e3b4a69c40e0952829ff470be570d4df463dae1f6a781a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "217f1b4d6a05cc254287927da312d61373155fb9739896c8f27571d8598ec38b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-07-18T20:17:06Z",
    "title_canon_sha256": "5f22f0b9e46a4754794048577d09df28f88ab468f877eb776d4b80b7540a8896"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4493",
    "kind": "arxiv",
    "version": 1
  }
}