Pith Number

pith:FJD5IVPM

pith:2008:FJD5IVPMZJ3MACMBY6BO3T2AMV

not attested not anchored not stored refs pending

Post-Newtonian limitations on measurement of the PPN parameters caused by motion of gravitating bodies

Sergei Kopeikin (University of Missouri-Columbia, USA)

arxiv:0809.3433 v3 · 2008-09-19 · 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{FJD5IVPMZJ3MACMBY6BO3T2AMV}

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	2026-05-18T02:15:34.181125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a47d455ecca76c00981c782edcf4065545d44ca893ede622f9562ac34934cea

Aliases

arxiv: 0809.3433 · arxiv_version: 0809.3433v3 · doi: 10.48550/arxiv.0809.3433 · pith_short_12: FJD5IVPMZJ3M · pith_short_16: FJD5IVPMZJ3MACMB · pith_short_8: FJD5IVPM

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/FJD5IVPMZJ3MACMBY6BO3T2AMV \
  | 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: 2a47d455ecca76c00981c782edcf4065545d44ca893ede622f9562ac34934cea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2402cd6d7cc7b6019cbe7004c91d4f3a2412e59f9257a3b39dfe3cfee5d8caca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-09-19T18:39:00Z",
    "title_canon_sha256": "f0261e285d952f0c286c338a28d902cf439b4042c719b23f9dfd69726f9f1c64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3433",
    "kind": "arxiv",
    "version": 3
  }
}