Pith Number

pith:KXWREXB3

pith:2017:KXWREXB3P2M3IPB6AJVP5AITZ7

not attested not anchored not stored refs pending

The Great Pretenders Among the ULX Class

D. Kazanas, D. M. Christodoulou, I. Contopoulos, R. Cappallo, S. G. T. Laycock

arxiv:1703.08476 v1 · 2017-03-24 · 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{KXWREXB3P2M3IPB6AJVP5AITZ7}

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	2026-05-18T00:42:29.169079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55ed125c3b7e99b43c3e026afe8113cfe5472305da482216d7e52fab52ed7d2a

Aliases

arxiv: 1703.08476 · arxiv_version: 1703.08476v1 · doi: 10.48550/arxiv.1703.08476 · pith_short_12: KXWREXB3P2M3 · pith_short_16: KXWREXB3P2M3IPB6 · pith_short_8: KXWREXB3

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/KXWREXB3P2M3IPB6AJVP5AITZ7 \
  | 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: 55ed125c3b7e99b43c3e026afe8113cfe5472305da482216d7e52fab52ed7d2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "895158f4888d86ac5258eab9596f06ee3e8228689724470b82b798790efbd69b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-03-24T15:48:47Z",
    "title_canon_sha256": "3ea2703c0ada973094e16178991d79de334ec0c029b02e2bc5dbbaefb5a35153"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08476",
    "kind": "arxiv",
    "version": 1
  }
}