Pith Number

pith:DUQOL6OL

pith:2023:DUQOL6OLBDC5OVY4SJVBVNBA5J

not attested not anchored not stored refs pending

A new derivation of the Hubble constant from $\gamma$-ray attenuation using improved optical depths for the Fermi and CTA era

A. Desai, A. Dom\'inguez (UC Madrid & IPARCOS), A. Saldana-Lopez (U. Geneva), D. Hartmann, J. Finke, J. R. Primack, M. Ajello, P. G. P\'erez-Gonz\'alez, P. {\O}stergaard Kirkeberg (DARK), R. Wojtak (DARK), V. S. Paliya

arxiv:2306.09878 v2 · 2023-06-16 · astro-ph.HE · 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{DUQOL6OLBDC5OVY4SJVBVNBA5J}

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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	2026-07-05T07:08:42.232715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d20e5f9cb08c5d7571c926a1ab420ea4eef21c11ae6517877a9d5a5e721e3c6

Aliases

arxiv: 2306.09878 · arxiv_version: 2306.09878v2 · doi: 10.48550/arxiv.2306.09878 · pith_short_12: DUQOL6OLBDC5 · pith_short_16: DUQOL6OLBDC5OVY4 · pith_short_8: DUQOL6OL

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/DUQOL6OLBDC5OVY4SJVBVNBA5J \
  | 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: 1d20e5f9cb08c5d7571c926a1ab420ea4eef21c11ae6517877a9d5a5e721e3c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98a275dabc8e02845bb231ea145c24efe46807802e65ceb6826b9ee2c3a885f3",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-06-16T14:43:07Z",
    "title_canon_sha256": "38c1d9fb3253f345b3effafbf714098088840f05b7a97b8fb341cfb34eb3b65c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.09878",
    "kind": "arxiv",
    "version": 2
  }
}