Pith Number

pith:CWXAYVF3

pith:2015:CWXAYVF3J7OZDVAMP2ERAEC37U

not attested not anchored not stored refs pending

Spectral and temporal properties of the ultra-luminous X-ray pulsar in M82 from 15 years of Chandra observations and analysis of the pulsed emission using NuSTAR

Andreas Zezas, Andrew Ptak, Ann Hornschemeier, Brian Grefenstette, Dominic J. Walton, Felix Fuerst, Fiona Harrison, Matteo Bachetti, Mihoko Yukita, Murray Brightman, Shriharsh Tendulkar

arxiv:1507.06014 v2 · 2015-07-21 · 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{CWXAYVF3J7OZDVAMP2ERAEC37U}

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	2026-05-18T01:23:03.673573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15ae0c54bb4fdd91d40c7e8910105bfd177d21b760e660e09ecbd9d9f61c7f47

Aliases

arxiv: 1507.06014 · arxiv_version: 1507.06014v2 · doi: 10.48550/arxiv.1507.06014 · pith_short_12: CWXAYVF3J7OZ · pith_short_16: CWXAYVF3J7OZDVAM · pith_short_8: CWXAYVF3

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/CWXAYVF3J7OZDVAMP2ERAEC37U \
  | 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: 15ae0c54bb4fdd91d40c7e8910105bfd177d21b760e660e09ecbd9d9f61c7f47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d4b265bc5980fa73a045f1f1c836e80a8cc1f3f662f80711a459efd6103ee3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-07-21T23:47:35Z",
    "title_canon_sha256": "28b4209fec38aca1a7e2d2103766915b6c3a7801e54613d38e9c2ccef26807fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06014",
    "kind": "arxiv",
    "version": 2
  }
}