Pith Number

pith:S62C2EPJ

pith:2015:S62C2EPJRLXZV3XKMU6I6R773U

not attested not anchored not stored refs pending

A Hard X-Ray Study of Ultraluminous X-ray Source NGC 5204 X-1 with NuSTAR and XMM-Newton

A. C. Fabian, B. W. Grefenstette, C. J. Hailey, D. Barret, D. J. Walton, D. Stern, E. Bellm, E. S. Mukherjee, F. A. Harrison, F. E. Christensen, F. Fuerst, J. M. Miller, K. K. Madsen, M. Bachetti, M. J. Middleton, S. E. Boggs, V. Rana, W. W. Craig, W. Zhang

arxiv:1502.01764 v2 · 2015-02-06 · astro-ph.HE · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S62C2EPJRLXZV3XKMU6I6R773U}

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	2026-05-18T01:35:49.240435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97b42d11e98aef9aeeea653c8f47ffdd10704f2e11d250709c3bdc03139fbd59

Aliases

arxiv: 1502.01764 · arxiv_version: 1502.01764v2 · doi: 10.48550/arxiv.1502.01764 · pith_short_12: S62C2EPJRLXZ · pith_short_16: S62C2EPJRLXZV3XK · pith_short_8: S62C2EPJ

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/S62C2EPJRLXZV3XKMU6I6R773U \
  | 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: 97b42d11e98aef9aeeea653c8f47ffdd10704f2e11d250709c3bdc03139fbd59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb39d119379ef650f418c1cf92da7be29b076bcf18a8f0aad925acb69eaa58ae",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-02-06T00:36:41Z",
    "title_canon_sha256": "a7dd21bab61e8cc5f351f83c1ae39ecc3e85639570799b71c13b14b2b920fe09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01764",
    "kind": "arxiv",
    "version": 2
  }
}