Pith Number

pith:6B2WDOBT

pith:2014:6B2WDOBTIJNFZDFBXNTKI6GHWG

not attested not anchored not stored refs pending

Effective absorbing column density in the gamma-ray burst afterglow X-ray spectra

A. Melandri, G. Cusumano, G. Ghirlanda, G. Ghisellini, G. Tagliaferri, M.G. Bernardini, P. D'Avanzo, R. Salvaterra, S. Campana, S.D. Vergani, V. Braito, V. D'Elia

arxiv:1405.4114 v1 · 2014-05-16 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6B2WDOBTIJNFZDFBXNTKI6GHWG}

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	2026-05-18T01:43:11.751063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f07561b833425a5c8ca1bb66a478c7b1a604fa3b1cb5fbe13ec592448a02a9a4

Aliases

arxiv: 1405.4114 · arxiv_version: 1405.4114v1 · doi: 10.48550/arxiv.1405.4114 · pith_short_12: 6B2WDOBTIJNF · pith_short_16: 6B2WDOBTIJNFZDFB · pith_short_8: 6B2WDOBT

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/6B2WDOBTIJNFZDFBXNTKI6GHWG \
  | 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: f07561b833425a5c8ca1bb66a478c7b1a604fa3b1cb5fbe13ec592448a02a9a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf5c52bfa71d6fd322e09303ffd66d533248c4a08858261b311b2a220779602d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-05-16T10:13:25Z",
    "title_canon_sha256": "88d7ed1aa8d471958d335b1952b1fe5b30c95ff0f87a11d496e401620039ec12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4114",
    "kind": "arxiv",
    "version": 1
  }
}