Pith Number

pith:IKYS3GPM

pith:2016:IKYS3GPMEEBMUDN3YNBAYYDCXZ

not attested not anchored not stored refs pending

Unbiased constraints on ultralight axion mass from dwarf spheroidal galaxies

Alma X. Gonzalez-Morales, David J. E. Marsh, Jorge Pe\~narrubia, L. Arturo Ure\~na-L\'opez

arxiv:1609.05856 v2 · 2016-09-19 · astro-ph.CO · astro-ph.GA · 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{IKYS3GPMEEBMUDN3YNBAYYDCXZ}

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	2026-05-18T00:37:48.290980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b12d99ec2102ca0dbbc3420c6062be422285eed8cc66f394eea0aa199ab16e

Aliases

arxiv: 1609.05856 · arxiv_version: 1609.05856v2 · doi: 10.48550/arxiv.1609.05856 · pith_short_12: IKYS3GPMEEBM · pith_short_16: IKYS3GPMEEBMUDN3 · pith_short_8: IKYS3GPM

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/IKYS3GPMEEBMUDN3YNBAYYDCXZ \
  | 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: 42b12d99ec2102ca0dbbc3420c6062be422285eed8cc66f394eea0aa199ab16e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63dbeb16dcff5d283e239ea37bf96f23c15d30a24e4c406b50a7d8267ccdd92f",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-09-19T18:49:38Z",
    "title_canon_sha256": "5334c123de89147995d9fa6aa729b3bcc31595f12e5bc30c6e3f37cb6ec5a5b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.05856",
    "kind": "arxiv",
    "version": 2
  }
}