Pith Number

pith:3AV4QQ33

pith:2016:3AV4QQ33CCDA7P4VK6LSW2PQXD

not attested not anchored not stored refs pending

Laboratory measurements compellingly support charge-exchange mechanism for the 'dark matter' $\sim$3.5 keV X-ray line

2), (2) Institut f\"ur Optik und Quantenelektronik, (3) SRON Netherlands Institute for Space Research, 4) ((1) Max-Planck-Institut f\"ur Kernphysik, (4) Leiden Observatory, Chintan Shah (1), Friedrich-Schiller-Universit\"at, Jelle Kaastra (3, Jos\'e R. Crespo L\'opez-Urrutia (1), Leiden University), Liyi Gu (3), Ren\'e Steinbr\"ugge (1), Sorbonnelaan 2, Stepan Dobrodey (1), Sven Bernitt (1

arxiv:1608.04751 v1 · 2016-08-16 · astro-ph.HE · astro-ph.CO · astro-ph.GA · physics.atom-ph · physics.plasm-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3AV4QQ33CCDA7P4VK6LSW2PQXD}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:55:12.534915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d82bc8437b10860fbf9557972b69f0b8c4b00b6e3b99e7dbd9ede8ee6380f6f3

Aliases

arxiv: 1608.04751 · arxiv_version: 1608.04751v1 · doi: 10.48550/arxiv.1608.04751 · pith_short_12: 3AV4QQ33CCDA · pith_short_16: 3AV4QQ33CCDA7P4V · pith_short_8: 3AV4QQ33

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/3AV4QQ33CCDA7P4VK6LSW2PQXD \
  | 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: d82bc8437b10860fbf9557972b69f0b8c4b00b6e3b99e7dbd9ede8ee6380f6f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36749a42e94b980fafd83a06252d646e4895941393413492448c198af338e359",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA",
      "physics.atom-ph",
      "physics.plasm-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-08-16T20:00:10Z",
    "title_canon_sha256": "538943858396b1cb78ce1b5c8247251afd397fcd09aed4daace2a5076433b6fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.04751",
    "kind": "arxiv",
    "version": 1
  }
}