Pith Number

pith:DRHQ5VZD

pith:2015:DRHQ5VZDMS22Z35I6DMI5OEHMX

not attested not anchored not stored refs pending

Super-solar metallicity at the position of the ultra-long GRB130925A

A. Nicuesa Guelbenzu, A. Rau, A. Rossi, C. Delvaux, D.A. Kann, F. Knust, J. Bolmer, J. Elliott, J.F. Graham, J. Greiner, K. Varela, M. Tanga, N.R. Tanvir, P. Schady, P. Wiseman, S. Klose, S. Savaglio, S. Schmidl, T. Kruehler, T. Schweyer. V. Sudilovsky

arxiv:1505.04415 v2 · 2015-05-17 · 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{DRHQ5VZDMS22Z35I6DMI5OEHMX}

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	2026-05-18T01:35:47.800701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c4f0ed72364b5acefa8f0d88eb88765f67bd888b6b4abd71ebf5f9e2c6389c7

Aliases

arxiv: 1505.04415 · arxiv_version: 1505.04415v2 · doi: 10.48550/arxiv.1505.04415 · pith_short_12: DRHQ5VZDMS22 · pith_short_16: DRHQ5VZDMS22Z35I · pith_short_8: DRHQ5VZD

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/DRHQ5VZDMS22Z35I6DMI5OEHMX \
  | 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: 1c4f0ed72364b5acefa8f0d88eb88765f67bd888b6b4abd71ebf5f9e2c6389c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "947b7a4636e06541287c36527bba45effdb8b2f6e5cd74d198b04e073d81d032",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-17T16:53:20Z",
    "title_canon_sha256": "518758038a65edf098249a4f4e01c8a6d4a857d4a4a22fb3311f71de553806f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04415",
    "kind": "arxiv",
    "version": 2
  }
}