Pith Number

pith:XGD3O2MH

pith:2012:XGD3O2MHADR4J7HM7HYPTLUKH6

not attested not anchored not stored refs pending

VLBI for Gravity Probe B. IV. A New Astrometric Analysis Technique and a Comparison with Results from Other Techniques

D. E. Lebach, D. Gordon, I. I. Shapiro, J.-F. Lestrade, J. I. Lederman, M. F. Bietenholz, M. I. Ratner, N. Bartel, R. M. Campbell, R. R. Ransom

arxiv:1204.4642 v1 · 2012-04-20 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XGD3O2MHADR4J7HM7HYPTLUKH6}

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	2026-07-04T23:53:03.104629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b987b7698700e3c4fcecf9f0f9ae8a3fa8a08f896caf0929d4028c4c50f374f9

Aliases

arxiv: 1204.4642 · arxiv_version: 1204.4642v1 · doi: 10.48550/arxiv.1204.4642 · pith_short_12: XGD3O2MHADR4 · pith_short_16: XGD3O2MHADR4J7HM · pith_short_8: XGD3O2MH

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/XGD3O2MHADR4J7HM7HYPTLUKH6 \
  | 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: b987b7698700e3c4fcecf9f0f9ae8a3fa8a08f896caf0929d4028c4c50f374f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8fdccf1b12a4f2006f37f7b68d1850de0e62919567bc0007ded3286ec89b074",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-04-20T14:18:10Z",
    "title_canon_sha256": "d5ab3122de6c400d53c8ec7ab555657a8f9d3b06eb519e93e090884d9edd6635"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4642",
    "kind": "arxiv",
    "version": 1
  }
}