Pith Number

pith:A2ULP34M

pith:1998:A2ULP34MZCBVEM7UZYAHOKCYFK

not attested not anchored not stored refs pending

The Orbital Evolution and Proper Motion of PSR J2051-0827

B. W. Stappers, J. S. Sandhu, M. Bailes, M. Toscano, R. N. Manchester

arxiv:astro-ph/9804108 v1 · 1998-04-10 · 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{A2ULP34MZCBVEM7UZYAHOKCYFK}

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	2026-07-04T16:06:18.084293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06a8b7ef8cc8835233f4ce007728582a8e19c8171ab24a88d2fb88b02fa1bbbd

Aliases

arxiv: astro-ph/9804108 · arxiv_version: astro-ph/9804108v1 · doi: 10.48550/arxiv.astro-ph/9804108 · pith_short_12: A2ULP34MZCBV · pith_short_16: A2ULP34MZCBVEM7U · pith_short_8: A2ULP34M

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/A2ULP34MZCBVEM7UZYAHOKCYFK \
  | 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: 06a8b7ef8cc8835233f4ce007728582a8e19c8171ab24a88d2fb88b02fa1bbbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d1150abd6c9aa9a4d01c39da5c4d11afe278f421e3e697a3ec21aa7acc11d1a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-04-10T08:57:07Z",
    "title_canon_sha256": "5efc83b139b4248ba9d8abeccb4e1579006ad2ca6592e13c7c04080429c6f332"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9804108",
    "kind": "arxiv",
    "version": 1
  }
}