Pith Number

pith:CQUEJXZH

pith:2016:CQUEJXZHBT5JJCEWANNFBZHN4U

not attested not anchored not stored refs pending

Spectral variation in the supergiant fast X-ray transient SAX J1818.6-1703 observed by XMM-Newton and INTEGRAL

A. B. Hill, A. J. Bird, C. M. Boon, L. Sidoli, M. E. Goossens, M. Fiocchi, S. P. Drave, V. A. McBride, V. Sguera

arxiv:1601.01591 v1 · 2016-01-07 · 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{CQUEJXZHBT5JJCEWANNFBZHN4U}

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	2026-05-18T01:22:32.101419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

142844df270cfa948896035a50e4ede502dafde08d9954a61355d1a80f0548cb

Aliases

arxiv: 1601.01591 · arxiv_version: 1601.01591v1 · doi: 10.48550/arxiv.1601.01591 · pith_short_12: CQUEJXZHBT5J · pith_short_16: CQUEJXZHBT5JJCEW · pith_short_8: CQUEJXZH

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/CQUEJXZHBT5JJCEWANNFBZHN4U \
  | 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: 142844df270cfa948896035a50e4ede502dafde08d9954a61355d1a80f0548cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dede88286e3015ca35aeae8d5c71effe16aa8198cd2b7220223a5ec0d0330957",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-01-07T16:35:59Z",
    "title_canon_sha256": "6a27df2ccf3e87de91cf43ab8cb9ea03280c7f84c9e779d4387f4ed2b9f067ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.01591",
    "kind": "arxiv",
    "version": 1
  }
}