Pith Number

pith:TDGCDALH

pith:2003:TDGCDALHQ7MM2WJ4ZRZBH3TYCL

not attested not anchored not stored refs pending

Particle detectors, geodesic motion, and the equivalence principle

Hans Westman, Sebastiano Sonego

arxiv:gr-qc/0307040 v2 · 2003-07-09 · 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{TDGCDALHQ7MM2WJ4ZRZBH3TYCL}

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	2026-05-18T04:35:34.753734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98cc21816787d8cd593ccc7213ee7812e3fa02ccbe047f6c519bd25774ed05d8

Aliases

arxiv: gr-qc/0307040 · arxiv_version: gr-qc/0307040v2 · doi: 10.48550/arxiv.gr-qc/0307040 · pith_short_12: TDGCDALHQ7MM · pith_short_16: TDGCDALHQ7MM2WJ4 · pith_short_8: TDGCDALH

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/TDGCDALHQ7MM2WJ4ZRZBH3TYCL \
  | 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: 98cc21816787d8cd593ccc7213ee7812e3fa02ccbe047f6c519bd25774ed05d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3596d72b40aadbccea71eae22e903dc74f921f3c9bcd71aa5f2eab0536dcdd1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-07-09T13:41:39Z",
    "title_canon_sha256": "36095a2053f660eaa2181c353d689b56aeb0b26d7786bb9131f029caad5474ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0307040",
    "kind": "arxiv",
    "version": 2
  }
}