Pith Number

pith:DW7HA5NI

pith:2011:DW7HA5NIBFBWF5Y24JKX4X5MZY

not attested not anchored not stored refs pending

Effect of Dust Extinction on Gamma-ray Burst Afterglows

2), (2) Hebei Normal University), Da-Ming Wei (1) ((1) Purple Mountain Observatory, Gu-Jing Lv (1), Lang Shao (1, Zhi-Ping Jin (1)

arxiv:1108.4930 v1 · 2011-08-24 · 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{DW7HA5NIBFBWF5Y24JKX4X5MZY}

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	2026-05-18T04:14:45.772877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1dbe7075a8094362f71ae2557e5facce13860d6ba4dae33068bf77b43f959656

Aliases

arxiv: 1108.4930 · arxiv_version: 1108.4930v1 · doi: 10.48550/arxiv.1108.4930 · pith_short_12: DW7HA5NIBFBW · pith_short_16: DW7HA5NIBFBWF5Y2 · pith_short_8: DW7HA5NI

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/DW7HA5NIBFBWF5Y24JKX4X5MZY \
  | 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: 1dbe7075a8094362f71ae2557e5facce13860d6ba4dae33068bf77b43f959656

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1160c71f97b42f4ed563701f4aa6fc1b3f5223c9bd3892eec606bed865a58cdc",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-08-24T20:01:11Z",
    "title_canon_sha256": "9a14b60e549136fb48f9368eab392ad5239feaff9966b522db993875de4f71f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4930",
    "kind": "arxiv",
    "version": 1
  }
}