Pith Number

pith:SDCYDYQC

pith:2025:SDCYDYQCGPVOYF2Y66CJ6WDEK6

not attested not anchored not stored refs pending

New Limits on Ultralight Axionlike Dark Matter from Reanalyzed Data

H. Yan, K. Y. Zhang, L. Y. Wu

arxiv:2501.08117 v2 · 2025-01-14 · hep-ph · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SDCYDYQCGPVOYF2Y66CJ6WDEK6}

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	2026-07-05T11:44:44.120450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90c581e20233eaec1758f7849f5864578385157a71ec560222fc41c6d451a886

Aliases

arxiv: 2501.08117 · arxiv_version: 2501.08117v2 · doi: 10.48550/arxiv.2501.08117 · pith_short_12: SDCYDYQCGPVO · pith_short_16: SDCYDYQCGPVOYF2Y · pith_short_8: SDCYDYQC

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/SDCYDYQCGPVOYF2Y66CJ6WDEK6 \
  | 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: 90c581e20233eaec1758f7849f5864578385157a71ec560222fc41c6d451a886

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb528d19125e94b855400c7d354ff91703d3c3618be61c3109b5c5bd0758c5fc",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-01-14T13:51:01Z",
    "title_canon_sha256": "ae3c42502e7176770f44ded350c1204cd1808c49620a06eea0018cd004373e0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.08117",
    "kind": "arxiv",
    "version": 2
  }
}