Pith Number

pith:ZH5YR3I4

pith:2023:ZH5YR3I424GPB4YQR643XXQZTA

not attested not anchored not stored refs pending

An Investigation of the state changes of PSR J2021+4026 and the Vela pulsar

H.-H. Wang, J.Takata, L.C.-C. Lin, P.-H. T. Tam

arxiv:2307.03661 v2 · 2023-07-07 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZH5YR3I424GPB4YQR643XXQZTA}

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	2026-07-05T07:34:49.020019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9fb88ed1cd70cf0f3108fb9bbde199810f74a49010e00b1b05f124879def6df

Aliases

arxiv: 2307.03661 · arxiv_version: 2307.03661v2 · doi: 10.48550/arxiv.2307.03661 · pith_short_12: ZH5YR3I424GP · pith_short_16: ZH5YR3I424GPB4YQ · pith_short_8: ZH5YR3I4

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/ZH5YR3I424GPB4YQR643XXQZTA \
  | 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: c9fb88ed1cd70cf0f3108fb9bbde199810f74a49010e00b1b05f124879def6df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c576454a7db4debd16a5a4f4fbf37547099d499bf633dc8b61460e5e9acdd26",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-07-07T15:33:34Z",
    "title_canon_sha256": "a54161fd9f4b13e6a32ae72094126794ffb056cf53eb09a7b187c5a23d772d56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.03661",
    "kind": "arxiv",
    "version": 2
  }
}