Pith Number

pith:YW5HEK3I

pith:2025:YW5HEK3IFASGBQGE3VKDZEBOIO

not attested not anchored not stored refs pending

Metagalactic Ultraviolet Background Tables for Calculating Diffuse Astrophysical Plasma Properties

Brian W. O'Shea, Claire Kopenhafer, Elias Taira

arxiv:2505.23544 v1 · 2025-05-29 · 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{YW5HEK3IFASGBQGE3VKDZEBOIO}

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	2026-07-05T11:12:03.702406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5ba722b68282460c0c4dd543c902e438394e87a0dfee042fed567a571d0ca19

Aliases

arxiv: 2505.23544 · arxiv_version: 2505.23544v1 · doi: 10.48550/arxiv.2505.23544 · pith_short_12: YW5HEK3IFASG · pith_short_16: YW5HEK3IFASGBQGE · pith_short_8: YW5HEK3I

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/YW5HEK3IFASGBQGE3VKDZEBOIO \
  | 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: c5ba722b68282460c0c4dd543c902e438394e87a0dfee042fed567a571d0ca19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08e27cb669fcffacbc58d17af2266fe474afb8661933861024c426958a8e929d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-05-29T15:23:14Z",
    "title_canon_sha256": "f464b84c72b92965d804b8d9375121c1f5b86ede982f368127e4a5be8e1ceef9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.23544",
    "kind": "arxiv",
    "version": 1
  }
}