Pith Number

pith:5UIOBAJT

pith:2025:5UIOBAJTNUXAQNHYQHLR5HVLJF

not attested not anchored not stored refs pending

Polycyclic Aromatic Hydrocarbon and the Ultraviolet Extinction Bump at the Cosmic Dawn

Aigen Li, Joris Witstok, Qi Lin, Xuejuan Yang

arxiv:2502.08113 v1 · 2025-02-12 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UIOBAJTNUXAQNHYQHLR5HVLJF}

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

Learning the Universe: The Structure of Dust Attenuation Curves in Galaxy Simulations

Receipt and verification

First computed	2026-07-05T10:13:15.564640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed10e081336d2e0834f881d71e9eab4979d5b2f78442d126b1d46cdce3be27b0

Aliases

arxiv: 2502.08113 · arxiv_version: 2502.08113v1 · doi: 10.48550/arxiv.2502.08113 · pith_short_12: 5UIOBAJTNUXA · pith_short_16: 5UIOBAJTNUXAQNHY · pith_short_8: 5UIOBAJT

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/5UIOBAJTNUXAQNHYQHLR5HVLJF \
  | 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: ed10e081336d2e0834f881d71e9eab4979d5b2f78442d126b1d46cdce3be27b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db5042114fe8985d782670434b89b0a1625d41d692f291a0d6d1f463ac5ba7d8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-02-12T04:23:19Z",
    "title_canon_sha256": "ae47a8e2a5ac292c0eb36f129f246153131933c1a60f000c3b4bf1eb104b3f6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.08113",
    "kind": "arxiv",
    "version": 1
  }
}