Pith Number

pith:PWXZUVN5

pith:2025:PWXZUVN5RVLN7JMM76ZE7E42M4

not attested not anchored not stored refs pending

The optical constants and grain sizes of interstellar dust measured directly using the dust scattered x-ray halo of GRB 221009A

Albert Sneppen, Darach Watson

arxiv:2506.12125 v1 · 2025-06-13 · astro-ph.HE · 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{PWXZUVN5RVLN7JMM76ZE7E42M4}

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	2026-07-05T12:03:27.402929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7daf9a55bd8d56dfa58cffb24f939a673d1dbc375b20ae68f633b12e8e575cc4

Aliases

arxiv: 2506.12125 · arxiv_version: 2506.12125v1 · doi: 10.48550/arxiv.2506.12125 · pith_short_12: PWXZUVN5RVLN · pith_short_16: PWXZUVN5RVLN7JMM · pith_short_8: PWXZUVN5

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/PWXZUVN5RVLN7JMM76ZE7E42M4 \
  | 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: 7daf9a55bd8d56dfa58cffb24f939a673d1dbc375b20ae68f633b12e8e575cc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3283799d3e6d8674642e9357bae47da10d360324770451962bed693308d425a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-06-13T18:00:00Z",
    "title_canon_sha256": "6882f98455dbb6bb0d80f5681d28d797946bc8b8b072275570a367d3554e86d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.12125",
    "kind": "arxiv",
    "version": 1
  }
}