Pith Number

pith:XFP7GQ4Q

pith:2010:XFP7GQ4Q5AUPLB24EYXZCL3T7E

not attested not anchored not stored refs pending

Optical-uv spectrum and proper motion of the middle-aged pulsar b1055-52

Astrophysics, G. G. Pavlov (Department of Astronomy, O. Kargaltsev (Department of Astronomy, Pennsylvania State University), R. P. Mignani (Mullard Space Science Laboratory, University College London), University of Florida)

arxiv:1007.2940 v1 · 2010-07-17 · 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{XFP7GQ4Q5AUPLB24EYXZCL3T7E}

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	2026-05-18T02:06:21.015008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b95ff34390e828f5875c262f912f73f91d0453e934805b6e3007a25f723b03e1

Aliases

arxiv: 1007.2940 · arxiv_version: 1007.2940v1 · doi: 10.48550/arxiv.1007.2940 · pith_short_12: XFP7GQ4Q5AUP · pith_short_16: XFP7GQ4Q5AUPLB24 · pith_short_8: XFP7GQ4Q

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/XFP7GQ4Q5AUPLB24EYXZCL3T7E \
  | 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: b95ff34390e828f5875c262f912f73f91d0453e934805b6e3007a25f723b03e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51bdf09ef6505a606057deb9150c2bf6db7b17f433f84eb417bf38a056805ae9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-07-17T16:43:50Z",
    "title_canon_sha256": "fbf0464894db60e8f1f2b1c1cab41f304bb8b85f8b04e003c86bbed281c9ae21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2940",
    "kind": "arxiv",
    "version": 1
  }
}