Pith Number

pith:VQZVCTQ7

pith:2023:VQZVCTQ7BJJC4ZWUXTLDYBDYJY

not attested not anchored not stored refs pending

Multiwavelength observations of PSR J2021+4026 across a mode change reveal a phase shift in its X-ray emission

A. De Luca, A. Fiori, A. K. Harding, M. Kerr, M. Marelli, M. Razzano, P. M. Saz Parkinson, R. P. Mignani, V. Testa

arxiv:2307.13580 v1 · 2023-07-25 · 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{VQZVCTQ7BJJC4ZWUXTLDYBDYJY}

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	2026-07-05T06:41:41.367278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac33514e1f0a522e66d4bcd63c04784e019ba9fda73e859aebe4db298da828c1

Aliases

arxiv: 2307.13580 · arxiv_version: 2307.13580v1 · doi: 10.48550/arxiv.2307.13580 · pith_short_12: VQZVCTQ7BJJC · pith_short_16: VQZVCTQ7BJJC4ZWU · pith_short_8: VQZVCTQ7

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/VQZVCTQ7BJJC4ZWUXTLDYBDYJY \
  | 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: ac33514e1f0a522e66d4bcd63c04784e019ba9fda73e859aebe4db298da828c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fd94e586302917a83a4efa390a4e88eb4da59316f2878b24c6e3ce04646b479",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-07-25T15:34:35Z",
    "title_canon_sha256": "b8800918e2957e4bd0f4b39cdb782a73266d7cd8e9f9d1d42f7612af54039acc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.13580",
    "kind": "arxiv",
    "version": 1
  }
}