Pith Number

pith:A7IYW2W6

pith:2012:A7IYW2W6NJKBIHY4FYRTSR4BQ6

not attested not anchored not stored refs pending

Constraining the optical emission from the double pulsar system J0737-3039

A. G. Lyne, A. Pellizzoni, A. Possenti, B. Lanzoni, C. Pallanca, E. Dalessandro, F. Camilo, F. R. Ferraro, M. Burgay, M. Kramer, N. d'Amico, R. N. Manchester, R. P. Mignani

arxiv:1202.2216 v1 · 2012-02-10 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A7IYW2W6NJKBIHY4FYRTSR4BQ6}

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	2026-05-18T01:58:31.381883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07d18b6ade6a54141f1c2e2339478187be8328fed42e1552299348a8ef8b4f59

Aliases

arxiv: 1202.2216 · arxiv_version: 1202.2216v1 · doi: 10.48550/arxiv.1202.2216 · pith_short_12: A7IYW2W6NJKB · pith_short_16: A7IYW2W6NJKBIHY4 · pith_short_8: A7IYW2W6

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/A7IYW2W6NJKBIHY4FYRTSR4BQ6 \
  | 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: 07d18b6ade6a54141f1c2e2339478187be8328fed42e1552299348a8ef8b4f59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a052cf34d63a2548e2d06745eb2aa1eb3f56958073db983f8bac81aef11a3c9",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-02-10T09:24:11Z",
    "title_canon_sha256": "4987283ff981bc4a8f944609e0ec5acd22392ecff695b79e9728bb197389b665"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2216",
    "kind": "arxiv",
    "version": 1
  }
}