Pith Number

pith:7B5HISL2

pith:2003:7B5HISL2O2W5F7SAKX3NBBSDVA

not attested not anchored not stored refs pending

A Young White Dwarf Companion to Pulsar 1620-26: Evidence for Early Planet Formation

Brad M. Hansen, Harvey B. Richer, Ingrid H. Stairs, Steinn Sigurdsson, Stephen E. Thorsett

arxiv:astro-ph/0307339 v1 · 2003-07-18 · 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{7B5HISL2O2W5F7SAKX3NBBSDVA}

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.

Cited by

2 papers in Pith

Pulsars in Globular Clusters With the SKAO

Astrophysics with the Laser Interferometer Space Antenna

Receipt and verification

First computed	2026-07-04T16:51:18.976202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f87a74497a76add2fe4055f6d08643a815692eac23ac3630745f078739e045ec

Aliases

arxiv: astro-ph/0307339 · arxiv_version: astro-ph/0307339v1 · doi: 10.48550/arxiv.astro-ph/0307339 · pith_short_12: 7B5HISL2O2W5 · pith_short_16: 7B5HISL2O2W5F7SA · pith_short_8: 7B5HISL2

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/7B5HISL2O2W5F7SAKX3NBBSDVA \
  | 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: f87a74497a76add2fe4055f6d08643a815692eac23ac3630745f078739e045ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73ed2ee6abb09eff58af03151f8591c33c6e2bc2d2926ccdc9dbfa38b5c2412f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-07-18T03:57:49Z",
    "title_canon_sha256": "48603c06a5b7425006df8c964c46bebd7039372cafa0ce8ad9c4a98a2992c394"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0307339",
    "kind": "arxiv",
    "version": 1
  }
}