Pith Number

pith:GO4RSICB

pith:2012:GO4RSICB2Y2T2DSLZYJIVLSBQA

not attested not anchored not stored refs pending

Celestial dynamics and astrometry in expanding universe

Sergei Kopeikin (University of Missouri-Columbia)

arxiv:1212.5278 v1 · 2012-12-20 · astro-ph.CO · 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{GO4RSICB2Y2T2DSLZYJIVLSBQA}

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	2026-05-18T03:38:02.290761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33b9192041d6353d0e4bce128aae41801dac40c5f7ad297beefd042894564f92

Aliases

arxiv: 1212.5278 · arxiv_version: 1212.5278v1 · doi: 10.48550/arxiv.1212.5278 · pith_short_12: GO4RSICB2Y2T · pith_short_16: GO4RSICB2Y2T2DSL · pith_short_8: GO4RSICB

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/GO4RSICB2Y2T2DSLZYJIVLSBQA \
  | 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: 33b9192041d6353d0e4bce128aae41801dac40c5f7ad297beefd042894564f92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec3e4652aa0c7804f0099d9d012220df345aef79c80e9c1540ab024ca297b080",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-20T21:42:27Z",
    "title_canon_sha256": "8080e914e275fb656e4af8f447cdfa102ee63c79e6c8c2306985d00dea8a265b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5278",
    "kind": "arxiv",
    "version": 1
  }
}