Pith Number

pith:GV4D745O

pith:2013:GV4D745OL2CGO4GKGYSOJUREDI

not attested not anchored not stored refs pending

X-ray variability and energy spectra from NGC5408 X-1 with XMM-Newton

(2) INAF-OAB Milan), A. Wolter (2) ((1) INAF-OAB Merate, M. D. Caballero-Garcia (1), T. Belloni (1)

arxiv:1308.1282 v1 · 2013-08-06 · 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{GV4D745OL2CGO4GKGYSOJUREDI}

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	2026-05-18T01:48:23.207488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35783ff3ae5e846770ca3624e4d2241a0b8036250b40bbbe7481c74f2afb6058

Aliases

arxiv: 1308.1282 · arxiv_version: 1308.1282v1 · doi: 10.48550/arxiv.1308.1282 · pith_short_12: GV4D745OL2CG · pith_short_16: GV4D745OL2CGO4GK · pith_short_8: GV4D745O

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/GV4D745OL2CGO4GKGYSOJUREDI \
  | 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: 35783ff3ae5e846770ca3624e4d2241a0b8036250b40bbbe7481c74f2afb6058

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "678480c8ad159c9c3d33215509347c8213ae974aff4a206b696beab657c9ffba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-08-06T14:25:23Z",
    "title_canon_sha256": "6c68f3e01bd82e56e02a5afa5c7d8807218ea8153edeba50deab3d68c9272c0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1282",
    "kind": "arxiv",
    "version": 1
  }
}