Pith Number

pith:OUU4BWAW

pith:2018:OUU4BWAWFPTM7GQYZ266YJMYUW

not attested not anchored not stored refs pending

Space and Space-Time geodesics in Schwarzschild geometry

Lorenzo Resca

arxiv:1803.08346 v2 · 2018-03-21 · 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{OUU4BWAWFPTM7GQYZ266YJMYUW}

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	2026-05-18T00:19:40.939553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7529c0d8162be6cf9a18cebdec2598a5b83f67a2288e9c1a17d8129a922b5fed

Aliases

arxiv: 1803.08346 · arxiv_version: 1803.08346v2 · doi: 10.48550/arxiv.1803.08346 · pith_short_12: OUU4BWAWFPTM · pith_short_16: OUU4BWAWFPTM7GQY · pith_short_8: OUU4BWAW

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/OUU4BWAWFPTM7GQYZ266YJMYUW \
  | 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: 7529c0d8162be6cf9a18cebdec2598a5b83f67a2288e9c1a17d8129a922b5fed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e18249b4c6d0e0020b70d2ef2ab77db64e67da19c08348c73e116c43bfeed5f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-03-21T11:34:53Z",
    "title_canon_sha256": "85b3fd86b5451528b3cf72f6bafe35519360d5937606af4fd4e0ac38b3d271c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08346",
    "kind": "arxiv",
    "version": 2
  }
}