Pith Number

pith:H77XB5WP

pith:2014:H77XB5WPJS7Q7NHFU2VUVHMFDX

not attested not anchored not stored refs pending

Questioning a 3.5 keV dark matter emission line

Signe Riemer-Sorensen

arxiv:1405.7943 v3 · 2014-05-30 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H77XB5WPJS7Q7NHFU2VUVHMFDX}

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	2026-05-18T01:14:45.723241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fff70f6cf4cbf0fb4e5a6ab4a9d851dd6f09fa2e75ec5c51b408d53e0bd3547

Aliases

arxiv: 1405.7943 · arxiv_version: 1405.7943v3 · doi: 10.48550/arxiv.1405.7943 · pith_short_12: H77XB5WPJS7Q · pith_short_16: H77XB5WPJS7Q7NHF · pith_short_8: H77XB5WP

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/H77XB5WPJS7Q7NHFU2VUVHMFDX \
  | 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: 3fff70f6cf4cbf0fb4e5a6ab4a9d851dd6f09fa2e75ec5c51b408d53e0bd3547

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "856e867f08a1feb597fd25ceb457f8afaaebdd741136044b82e62854b835215d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-05-30T18:21:51Z",
    "title_canon_sha256": "2cdac97f2a6417320dd3a52ac6df389414aff5db17ddaa7a14f99de06f0988fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7943",
    "kind": "arxiv",
    "version": 3
  }
}