Pith Number

pith:QPIWAR54

pith:2017:QPIWAR545YJXI4S4EF4YZQSQPV

not attested not anchored not stored refs pending

Colour variations in the GRB 120327A afterglow

A. Gomboc, A. Martin-Carrillo, A. Melandri, A. P. LaCluyze, A. S. Trotter, B. E. Cobb, B. Sbarufatti, C. G. Mundell, C. Guidorzi, D. E. Reichart, D. Fugazza, D. Kopac, D. Kuroda, D. Malesani, D. Murphy, E. Zaninoni, F. J. Virgili, F. Nappo, G. Ghirlanda, G. Tagliaferri, H. Hanayama, I. A. Steele, J. B. Haislip, J. Bolmer, J. Gorosabel, J. Greiner, J. Japelj, J.-W. Kim, K. M. Ivarsen, L. Hanlon, M. G. Bernardini, M. Im, M. Jelinek, M. Topinka, N. Kawai, O. S. Salafia, P. D'Avanzo, P. Kuin, R. J. Smith, R. Salvaterra, S. Campana, S. Covino, S. D. Vergani, S. Kobayashi, V. D'Elia

arxiv:1709.08865 v1 · 2017-09-26 · 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{QPIWAR545YJXI4S4EF4YZQSQPV}

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	2026-05-18T00:31:39.675777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83d16047bcee1374725c21798cc2507d44f2aec7ff15f5d02435817f1b10ab9b

Aliases

arxiv: 1709.08865 · arxiv_version: 1709.08865v1 · doi: 10.48550/arxiv.1709.08865 · pith_short_12: QPIWAR545YJX · pith_short_16: QPIWAR545YJXI4S4 · pith_short_8: QPIWAR54

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/QPIWAR545YJXI4S4EF4YZQSQPV \
  | 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: 83d16047bcee1374725c21798cc2507d44f2aec7ff15f5d02435817f1b10ab9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9948bd3576e08ebf0a103154811b1772cca80341326fc746d54b10d3b6b0e953",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-09-26T07:33:32Z",
    "title_canon_sha256": "3a3439226801968be1c2bc1780022365bbd740174f7c70810a32d6173824a7be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.08865",
    "kind": "arxiv",
    "version": 1
  }
}