Pith Number

pith:FDQJX2XU

pith:2017:FDQJX2XUEYRAMVAR22E7VQRDAL

not attested not anchored not stored refs pending

Dust reddening and extinction curves towards gamma-ray bursts at z > 4

Andrew J. Levan, C\'edric Ledoux, Jan Bolmer, Jochen Greiner, Nial R. Tanvir, Patricia Schady, Thomas Kr\"uhler

arxiv:1709.06867 v2 · 2017-09-20 · astro-ph.GA · 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{FDQJX2XUEYRAMVAR22E7VQRDAL}

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	2026-05-18T00:26:24.883796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28e09beaf42622065411d689fac22302f33399bfe884bc9bfd85f81a68fd4f6c

Aliases

arxiv: 1709.06867 · arxiv_version: 1709.06867v2 · doi: 10.48550/arxiv.1709.06867 · pith_short_12: FDQJX2XUEYRA · pith_short_16: FDQJX2XUEYRAMVAR · pith_short_8: FDQJX2XU

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/FDQJX2XUEYRAMVAR22E7VQRDAL \
  | 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: 28e09beaf42622065411d689fac22302f33399bfe884bc9bfd85f81a68fd4f6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55288d935f791be948b796980d074c41d6c4c9a95514f76d4d4c63fa380c2cc9",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-20T13:56:27Z",
    "title_canon_sha256": "feaeae0eebacfbe569d854b7cb3c2e7c9edb858436f1248e03ccaed0b15079f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.06867",
    "kind": "arxiv",
    "version": 2
  }
}