Pith Number

pith:IFTRHDBA

pith:2004:IFTRHDBA25H6VTYKRH6HEY3S4H

not attested not anchored not stored refs pending

The Double Pulsar System J0737-3039: Modulation of the radio emission from B by radiation from A

A. G. Lyne, A. Possenti, B. C. Joshi, D. R. Lorimer, F. Camilo & N. D'Amico, I. H. Stairs, M. A. McLaughlin, M. Burgay, M. Kramer, P. C. C. Freire, R. N. Manchester

arxiv:astro-ph/0407265 v2 · 2004-07-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IFTRHDBA25H6VTYKRH6HEY3S4H}

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	2026-07-04T16:44:18.278684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4167138c20d74feacf0a89fc726372e1e82fd30b6e001662640ff4f04f0c8060

Aliases

arxiv: astro-ph/0407265 · arxiv_version: astro-ph/0407265v2 · doi: 10.48550/arxiv.astro-ph/0407265 · pith_short_12: IFTRHDBA25H6 · pith_short_16: IFTRHDBA25H6VTYK · pith_short_8: IFTRHDBA

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/IFTRHDBA25H6VTYKRH6HEY3S4H \
  | 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: 4167138c20d74feacf0a89fc726372e1e82fd30b6e001662640ff4f04f0c8060

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6cd6265ab8730cb659cef23782b2954fe6e264706c9101cde4d9d55f76191d4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-07-13T13:43:04Z",
    "title_canon_sha256": "f2af4331ead062b38727bb5c86303d0b97ff93475eb05f9183851975d10cebb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0407265",
    "kind": "arxiv",
    "version": 2
  }
}