Pith Number

pith:7CZYAZ7N

pith:2009:7CZYAZ7NBITDRO5WOT7RH66RLM

not attested not anchored not stored refs pending

A new technique for timing the double pulsar system

A. G. Lyne, D. R. Lorimer, I. H. Stairs, M. A. McLaughlin, M. Kramer, N. Wex, P. C. C. Freire, R. Rosen

arxiv:0903.0073 v2 · 2009-02-28 · 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{7CZYAZ7NBITDRO5WOT7RH66RLM}

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	2026-05-18T02:14:38.094498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8b38067ed0a2638bbb674ff13fbd15b370984c65fbf1aeb20f399149fca406a

Aliases

arxiv: 0903.0073 · arxiv_version: 0903.0073v2 · doi: 10.48550/arxiv.0903.0073 · pith_short_12: 7CZYAZ7NBITD · pith_short_16: 7CZYAZ7NBITDRO5W · pith_short_8: 7CZYAZ7N

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/7CZYAZ7NBITDRO5WOT7RH66RLM \
  | 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: f8b38067ed0a2638bbb674ff13fbd15b370984c65fbf1aeb20f399149fca406a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4eedaeb20f18b6901be358c59defbb8deb9303b585255c8bff64778283fab165",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-02-28T14:19:45Z",
    "title_canon_sha256": "a88d97422debdb8db1ee108fbcf35f76883e266d42b411d39387bc62d9106710"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.0073",
    "kind": "arxiv",
    "version": 2
  }
}