Pith Number

pith:I2HIB44T

pith:2025:I2HIB44TISPP5KJX5GDN2TENM3

not attested not anchored not stored refs pending

Expanding Ejecta Method: II. Framework for Cosmological Distance Measurements via Intensity Interferometry

David Dunsky, I-Kai Chen, Junwu Huang, Ken Van Tilburg, Robert V. Wagoner

arxiv:2505.08856 v1 · 2025-05-13 · astro-ph.CO · astro-ph.GA · astro-ph.HE · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2HIB44TISPP5KJX5GDN2TENM3}

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	2026-07-05T11:02:45.854049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468e80f393449efea937e986dd4c8d66d616816cddc1965b2d1ed1cca2cbf42d

Aliases

arxiv: 2505.08856 · arxiv_version: 2505.08856v1 · doi: 10.48550/arxiv.2505.08856 · pith_short_12: I2HIB44TISPP · pith_short_16: I2HIB44TISPP5KJX · pith_short_8: I2HIB44T

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/I2HIB44TISPP5KJX5GDN2TENM3 \
  | 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: 468e80f393449efea937e986dd4c8d66d616816cddc1965b2d1ed1cca2cbf42d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ccdb4093724c0a48b4cb1f9855305cd0d2f2ea8a145d3e53736b48b9914b2aa",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE",
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-05-13T18:00:00Z",
    "title_canon_sha256": "2fc130e819777f539dcb1ab4bfd4d6c20d74aa83fa954f6f1bf3211ebd5b3fd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.08856",
    "kind": "arxiv",
    "version": 1
  }
}