Pith Number

pith:ZPO4R76L

pith:2009:ZPO4R76LZVAMYBTKKMHCRTLP7O

not attested not anchored not stored refs pending

Precision Astrometry with the Very Long Baseline Array: Parallaxes and Proper Motions for 14 Pulsars

A. G. Lyne, E. B. Fomalont, J. M. Cordes, M. Kramer, S. Chatterjee, S. E. Thorsett, T. J. W. Lazio, W. F. Brisken, W. H. T. Vlemmings, W. M. Goss

arxiv:0901.1436 v2 · 2009-01-11 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZPO4R76LZVAMYBTKKMHCRTLP7O}

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	2026-05-18T04:29:23.967924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbddc8ffcbcd40cc066a530e28cd6ffb966e5c593fb002cebb406fc59d29dbf3

Aliases

arxiv: 0901.1436 · arxiv_version: 0901.1436v2 · doi: 10.48550/arxiv.0901.1436 · pith_short_12: ZPO4R76LZVAM · pith_short_16: ZPO4R76LZVAMYBTK · pith_short_8: ZPO4R76L

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/ZPO4R76LZVAMYBTKKMHCRTLP7O \
  | 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: cbddc8ffcbcd40cc066a530e28cd6ffb966e5c593fb002cebb406fc59d29dbf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3989c6ca9a17f2eeda9ceb3485571ba3451dae738054ee26aa3ccb4ce64d4c4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-11T13:15:11Z",
    "title_canon_sha256": "33e89acac6a17a9ecb9c9226a252979ab0c946f5c462aaa43e20fe24bc9201eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1436",
    "kind": "arxiv",
    "version": 2
  }
}