Pith Number

pith:ZXOZABFK

pith:2019:ZXOZABFK23FIYMFAY5BMKHYCXM

not attested not anchored not stored refs pending

Scalars Gliding Through an Expanding Universe

Anson Hook, Gustavo Marques-Tavares, Yuhsin Tsai

arxiv:1912.08817 v2 · 2019-12-18 · hep-ph · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZXOZABFK23FIYMFAY5BMKHYCXM}

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

Universal lower bound on the axion decay constant from free streaming effects

Receipt and verification

First computed	2026-07-05T01:22:15.386230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cddd9004aad6ca8c30a0c742c51f02bb252c25b956871b640629cb4823041ae0

Aliases

arxiv: 1912.08817 · arxiv_version: 1912.08817v2 · doi: 10.48550/arxiv.1912.08817 · pith_short_12: ZXOZABFK23FI · pith_short_16: ZXOZABFK23FIYMFA · pith_short_8: ZXOZABFK

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/ZXOZABFK23FIYMFAY5BMKHYCXM \
  | 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: cddd9004aad6ca8c30a0c742c51f02bb252c25b956871b640629cb4823041ae0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63481d8727c7a77919227bf2f19cd81436b5e11ac0431a2cebebb63e44164eef",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-12-18T19:00:01Z",
    "title_canon_sha256": "e88ee183c9a47e799329b72560f76e82a314400aa334e8fa32a3c1b1acf60d8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.08817",
    "kind": "arxiv",
    "version": 2
  }
}