Pith Number

pith:ONZM2OVY

pith:2010:ONZM2OVYVTOSB7NSQPWCUC3BVF

not attested not anchored not stored refs pending

Searching for dark matter in X-rays: how to check the dark matter origin of a spectral feature

Alexey Boyarsky, Dmytro Iakubovskyi, Matthew G. Walker, Oleg Ruchayskiy, Signe Riemer-Sorensen, Steen H. Hansen

arxiv:1001.0644 v2 · 2010-01-05 · astro-ph.CO · astro-ph.GA · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ONZM2OVYVTOSB7NSQPWCUC3BVF}

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	2026-05-18T04:41:05.142603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7372cd3ab8acdd20fdb283ec2a0b61a94a7db0399a23583e1db412c3f9988b27

Aliases

arxiv: 1001.0644 · arxiv_version: 1001.0644v2 · doi: 10.48550/arxiv.1001.0644 · pith_short_12: ONZM2OVYVTOS · pith_short_16: ONZM2OVYVTOSB7NS · pith_short_8: ONZM2OVY

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/ONZM2OVYVTOSB7NSQPWCUC3BVF \
  | 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: 7372cd3ab8acdd20fdb283ec2a0b61a94a7db0399a23583e1db412c3f9988b27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77d4710edd2c57b17da9d72eaeffc49bfa85dd380f510728146c0d68c4394121",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-01-05T20:22:33Z",
    "title_canon_sha256": "3ba8e9cf873629383f79aae4ffd30c072ecd0763e88523bc890d06b1e355dfd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.0644",
    "kind": "arxiv",
    "version": 2
  }
}