Pith Number

pith:UTPOUFT2

pith:2007:UTPOUFT2Y22AH5CFJYRAUNXJEN

not attested not anchored not stored refs pending

Discovery of X-ray emission from the young radio pulsar PSR J1357-6429

A. De Luca, A. Tiengo, F. Mattana, P. Esposito

arxiv:0704.0205 v2 · 2007-04-02 · 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{UTPOUFT2Y22AH5CFJYRAUNXJEN}

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	2026-07-04T15:38:21.468746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4deea167ac6b403f4454e220a36e92341963d9a7246a9c6700fe7b9d4689d1d

Aliases

arxiv: 0704.0205 · arxiv_version: 0704.0205v2 · doi: 10.48550/arxiv.0704.0205 · pith_short_12: UTPOUFT2Y22A · pith_short_16: UTPOUFT2Y22AH5CF · pith_short_8: UTPOUFT2

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/UTPOUFT2Y22AH5CFJYRAUNXJEN \
  | 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: a4deea167ac6b403f4454e220a36e92341963d9a7246a9c6700fe7b9d4689d1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c35037bbbc586835dd5a5e0a6a221dd72ea28a448f9d0186d556618d4154f34",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-02T14:28:29Z",
    "title_canon_sha256": "4f44ee28f5767405a85758ee8850bf115bc51d7fa835dc012a6f80bb13ce3ee7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.0205",
    "kind": "arxiv",
    "version": 2
  }
}