Pith Number

pith:53KTPM5Q

pith:2015:53KTPM5QN7IRY22GLYA7PG7A5D

not attested not anchored not stored refs pending

VLBI for Gravity Probe B: The Guide Star IM Pegasi

D. E. Lebach, I. I. Shapiro, M. F. Bietenholz, M. I Ratner, N. Bartel, R. R Ransom

arxiv:1509.07529 v1 · 2015-09-24 · astro-ph.SR · astro-ph.IM · 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{53KTPM5QN7IRY22GLYA7PG7A5D}

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	2026-05-18T01:24:52.051722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eed537b3b06fd11c6b465e01f79be0e8ed9f204d965056868d269eabb13d5bc5

Aliases

arxiv: 1509.07529 · arxiv_version: 1509.07529v1 · doi: 10.48550/arxiv.1509.07529 · pith_short_12: 53KTPM5QN7IR · pith_short_16: 53KTPM5QN7IRY22G · pith_short_8: 53KTPM5Q

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/53KTPM5QN7IRY22GLYA7PG7A5D \
  | 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: eed537b3b06fd11c6b465e01f79be0e8ed9f204d965056868d269eabb13d5bc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6502fb60ab23bc2de46e6b0c3e8026d27318b2d53c037dfc734c2d6e208a6e01",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-09-24T20:27:47Z",
    "title_canon_sha256": "e6203bf922004d37af9e3802fe83a13b3655058990b59438fc759d1bd388d570"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07529",
    "kind": "arxiv",
    "version": 1
  }
}