Pith Number

pith:4RZNVFD4

pith:2019:4RZNVFD4AMRYPL2GOWNQEHP6EK

not attested not anchored not stored refs pending

Ultra Light Boson Dark Matter and Event Horizon Telescope Observations of M87*

Hooman Davoudiasl, Peter B. Denton

arxiv:1904.09242 v1 · 2019-04-19 · astro-ph.CO · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4RZNVFD4AMRYPL2GOWNQEHP6EK}

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.

Cited by

1 paper in Pith

Constraining interacting dark energy models with black hole superradiance

Receipt and verification

First computed	2026-05-17T23:40:55.187310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e472da947c032387af46759b021dfe228b3beb33af3d4dae91ad1fa4d00bf46e

Aliases

arxiv: 1904.09242 · arxiv_version: 1904.09242v1 · doi: 10.48550/arxiv.1904.09242 · pith_short_12: 4RZNVFD4AMRY · pith_short_16: 4RZNVFD4AMRYPL2G · pith_short_8: 4RZNVFD4

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/4RZNVFD4AMRYPL2GOWNQEHP6EK \
  | 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: e472da947c032387af46759b021dfe228b3beb33af3d4dae91ad1fa4d00bf46e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a647b1b0e73de16ec63cb92bb9dc5aa01b53ce82f388ccf862dea9b5a4811dac",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-04-19T15:50:47Z",
    "title_canon_sha256": "f4fb8d550cbfe6ec1480d0571f9d773a6c6d7ad3ca1c2637cd161afcc8daca27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09242",
    "kind": "arxiv",
    "version": 1
  }
}