Pith Number

pith:3V2YOPRF

pith:2003:3V2YOPRFL3M45WG4JXT6HPSYLF

not attested not anchored not stored refs pending

ULXs, Microblazars, and the Unidentified EGRET sources

Diego F. Torres, Gustavo E. Romero, Yousaf M. Butt

arxiv:astro-ph/0301650 v1 · 2003-01-31 · 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{3V2YOPRFL3M45WG4JXT6HPSYLF}

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	2026-07-04T14:12:34.770701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd75873e255ed9ced8dc4de7e3be58594bc3ed6a3d45bcfb89200050a6dca92f

Aliases

arxiv: astro-ph/0301650 · arxiv_version: astro-ph/0301650v1 · doi: 10.48550/arxiv.astro-ph/0301650 · pith_short_12: 3V2YOPRFL3M4 · pith_short_16: 3V2YOPRFL3M45WG4 · pith_short_8: 3V2YOPRF

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/3V2YOPRFL3M45WG4JXT6HPSYLF \
  | 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: dd75873e255ed9ced8dc4de7e3be58594bc3ed6a3d45bcfb89200050a6dca92f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "871f48ae55f8f1161885aeab5f3547f92ce147a1f6d4d8f4806178bf88dc110f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-31T16:33:07Z",
    "title_canon_sha256": "4b82ff95c3720527528e30d07a9abc35794f2d3293043fef5a5b34d6826cf3cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301650",
    "kind": "arxiv",
    "version": 1
  }
}