Pith Number

pith:AQ6GJFV6

pith:2019:AQ6GJFV6WERXSWVQYDTXSPAQP6

not attested not anchored not stored refs pending

Search for ultralight scalar dark matter with NANOGrav pulsar timing arrays

Jiro Soda, Ryo Kato

arxiv:1904.09143 v2 · 2019-04-19 · astro-ph.HE · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AQ6GJFV6WERXSWVQYDTXSPAQP6}

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

2 papers in Pith

Artificial Precision Polarization Array: Sensitivity for the axion-like dark matter with clock satellites

Constraints on Ultralight Scalar and Dark Photon Dark Matter from PPTA-DR3 and EPTA-DR2

Receipt and verification

First computed	2026-07-05T01:38:32.687098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

043c6496beb123795ab0c0e7793c107f9fe61baeb6bfe064e660183575bbad3a

Aliases

arxiv: 1904.09143 · arxiv_version: 1904.09143v2 · doi: 10.48550/arxiv.1904.09143 · pith_short_12: AQ6GJFV6WERX · pith_short_16: AQ6GJFV6WERXSWVQ · pith_short_8: AQ6GJFV6

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/AQ6GJFV6WERXSWVQYDTXSPAQP6 \
  | 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: 043c6496beb123795ab0c0e7793c107f9fe61baeb6bfe064e660183575bbad3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1271b411f5ac8ee21b7ef4b42fe11a89c8128d200eeca3d964725189e12a81ba",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-04-19T10:54:04Z",
    "title_canon_sha256": "972d019abc5e3a18f0d693df6700b68c551ca27d09e4d52112bff65f755a435c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09143",
    "kind": "arxiv",
    "version": 2
  }
}