Pith Number

pith:673QX3UP

pith:2004:673QX3UPF5LDHM3OF6H53MKFIY

not attested not anchored not stored refs pending

Pioneer acceleration and variation of light speed: experimental situation

Antonio F. Ranada

arxiv:gr-qc/0402120 v2 · 2004-02-26 · 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{673QX3UPF5LDHM3OF6H53MKFIY}

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	2026-05-18T01:06:47.325361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7f70bee8f2f5633b36e2f8fddb145461993db56d5a0c423c8caee4fef31c296

Aliases

arxiv: gr-qc/0402120 · arxiv_version: gr-qc/0402120v2 · doi: 10.48550/arxiv.gr-qc/0402120 · pith_short_12: 673QX3UPF5LD · pith_short_16: 673QX3UPF5LDHM3O · pith_short_8: 673QX3UP

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/673QX3UPF5LDHM3OF6H53MKFIY \
  | 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: f7f70bee8f2f5633b36e2f8fddb145461993db56d5a0c423c8caee4fef31c296

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f6bcd70d7632a2587f30710a8631bd0bf4ab3ddf0409193f97998f4b9e10349",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-02-26T16:19:28Z",
    "title_canon_sha256": "531a0fb9b9de338e644b29844301498051d6bcb4929c5646b09e52c8eb10e675"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0402120",
    "kind": "arxiv",
    "version": 2
  }
}