Pith Number

pith:CAZGKFZO

pith:2018:CAZGKFZOIGHA5NFKWEKKQHMREL

not attested not anchored not stored refs pending

Gravity's light in the shadow of the Moon

Andri Gretarsson, Douglas Singleton, Preston Jones

arxiv:1805.06788 v1 · 2018-05-16 · 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{CAZGKFZOIGHA5NFKWEKKQHMREL}

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	2026-05-17T23:59:22.719180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

103265172e418e0eb4aab114a81d9122d68310031e44c626d9c3135110280d04

Aliases

arxiv: 1805.06788 · arxiv_version: 1805.06788v1 · doi: 10.48550/arxiv.1805.06788 · pith_short_12: CAZGKFZOIGHA · pith_short_16: CAZGKFZOIGHA5NFK · pith_short_8: CAZGKFZO

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/CAZGKFZOIGHA5NFKWEKKQHMREL \
  | 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: 103265172e418e0eb4aab114a81d9122d68310031e44c626d9c3135110280d04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0826158d82a1c872bc1381162d6f7e7354b55ce0772be95818d6e13a20455b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-16T17:14:04Z",
    "title_canon_sha256": "bbda58a36592ecd3961882d7398d0dc0bec3656cb1347192bc1488bbedc72b38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06788",
    "kind": "arxiv",
    "version": 1
  }
}