Pith Number

pith:4KZXXMB2

pith:2003:4KZXXMB2RHNSC4ZEB3WBBKAJSZ

not attested not anchored not stored refs pending

The proper motion and energy distribution of the isolated neutron star RX J0720.4-3125

C. Motch, F. Haberl, V.E. Zavlin

arxiv:astro-ph/0305016 v1 · 2003-05-01 · 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{4KZXXMB2RHNSC4ZEB3WBBKAJSZ}

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	2026-05-18T01:07:33.615734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2b37bb03a89db2173240eec10a809964e705ef330a449e74de25c59f79808cc

Aliases

arxiv: astro-ph/0305016 · arxiv_version: astro-ph/0305016v1 · doi: 10.48550/arxiv.astro-ph/0305016 · pith_short_12: 4KZXXMB2RHNS · pith_short_16: 4KZXXMB2RHNSC4ZE · pith_short_8: 4KZXXMB2

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/4KZXXMB2RHNSC4ZEB3WBBKAJSZ \
  | 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: e2b37bb03a89db2173240eec10a809964e705ef330a449e74de25c59f79808cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd32a5bff16295e0815215132f2af1cce787998fe24145ba3402eaf86b8364fc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-01T11:02:36Z",
    "title_canon_sha256": "a1d39890e4e5518a5bb2cc3afb3d8cc424102acb687cbf627f13857b0f8682a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305016",
    "kind": "arxiv",
    "version": 1
  }
}