Pith Number

pith:JRHTWJL6

pith:2003:JRHTWJL6HTPYTK7WCKLRM2V5OB

not attested not anchored not stored refs pending

The HRX-BL Lac sample - evolution of BL Lac objects

2, (2) Hamburger Sternwarte, 3), (3) IAAT, (4) Universitaet Potsdam), D. Engels (2), N. Bade (2), O. Wucknitz (4) ((1) INTEGRAL Science Data Centre, V. Beckmann (1

arxiv:astro-ph/0302242 v1 · 2003-02-12 · 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{JRHTWJL6HTPYTK7WCKLRM2V5OB}

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	2026-05-18T04:21:41.875103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c4f3b257e3cdf89abf61297166abd706340be3f12e90120856f50c26bc6e184

Aliases

arxiv: astro-ph/0302242 · arxiv_version: astro-ph/0302242v1 · doi: 10.48550/arxiv.astro-ph/0302242 · pith_short_12: JRHTWJL6HTPY · pith_short_16: JRHTWJL6HTPYTK7W · pith_short_8: JRHTWJL6

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/JRHTWJL6HTPYTK7WCKLRM2V5OB \
  | 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: 4c4f3b257e3cdf89abf61297166abd706340be3f12e90120856f50c26bc6e184

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f62e628e04377960a73b35a85308a16b742cd9b59e9d67cd2d675952f5c14e3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-12T19:07:10Z",
    "title_canon_sha256": "9163ffd3c1bf6f617f5d606341b1d14e881140c84345194114c6dbca4cf22f3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302242",
    "kind": "arxiv",
    "version": 1
  }
}