Pith Number

pith:44CMTZEU

pith:2014:44CMTZEU4U62EPVNHFLXOC2MLD

not attested not anchored not stored refs pending

Fermi coordinates in Schwarzschild spacetime: closed form expressions

Andrea Geralico, Donato Bini, Robert T. Jantzen

arxiv:1408.4947 v1 · 2014-08-21 · 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{44CMTZEU4U62EPVNHFLXOC2MLD}

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	2026-05-18T01:42:16.195292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e704c9e494e53da23ead3957770b4c58d3ee6fc9213f0bc77ec298fa04fadc0d

Aliases

arxiv: 1408.4947 · arxiv_version: 1408.4947v1 · doi: 10.48550/arxiv.1408.4947 · pith_short_12: 44CMTZEU4U62 · pith_short_16: 44CMTZEU4U62EPVN · pith_short_8: 44CMTZEU

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/44CMTZEU4U62EPVNHFLXOC2MLD \
  | 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: e704c9e494e53da23ead3957770b4c58d3ee6fc9213f0bc77ec298fa04fadc0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0203dd0914303ba27a26cb7b2f293dc54686c9b368b6e3a1512d37819bff369b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-08-21T10:50:44Z",
    "title_canon_sha256": "a746686ef8f05993881a3f9140446efeec2c58aeff7696a98e7089a80cf0e9ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4947",
    "kind": "arxiv",
    "version": 1
  }
}