Pith Number

pith:42KMVTGP

pith:1997:42KMVTGPQHY4XTESF6UTVFG4PG

not attested not anchored not stored refs pending

The Pulsar Kick Velocity Distribution

2), (2) Theoretical Astrophysics, Brad M. S. Hansen (1, California Institute of Technology), E. Sterl Phinney (2) ((1) Canadian Institute for Theoretical Astrophysics, University of Toronto

arxiv:astro-ph/9708071 v1 · 1997-08-07 · 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{42KMVTGPQHY4XTESF6UTVFG4PG}

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	2026-05-18T01:40:16.909890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e694cacccf81f1cbcc922fa93a94dc798c303339f5a8afddd887c844186ac1b5

Aliases

arxiv: astro-ph/9708071 · arxiv_version: astro-ph/9708071v1 · doi: 10.48550/arxiv.astro-ph/9708071 · pith_short_12: 42KMVTGPQHY4 · pith_short_16: 42KMVTGPQHY4XTES · pith_short_8: 42KMVTGP

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/42KMVTGPQHY4XTESF6UTVFG4PG \
  | 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: e694cacccf81f1cbcc922fa93a94dc798c303339f5a8afddd887c844186ac1b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c06cbf4227ee031b21d8ddfab19c1b5e62de1f24d12bdaaca8d870ad7b64de47",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-08-07T21:49:20Z",
    "title_canon_sha256": "6685f8e1627bab70dd135fc671e25a28b7f360ced5c700f76f3e7036239f4972"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9708071",
    "kind": "arxiv",
    "version": 1
  }
}