Pith Number

pith:ECTQYD2B

pith:2015:ECTQYD2BAWCEAHDHZL6D4F7DMD

not attested not anchored not stored refs pending

GRB hosts through cosmic time - VLT/X-Shooter emission-line spectroscopy of 96 GRB-selected galaxies at 0.1 < z < 3.6

A. de Ugarte Postigo, A. Gomboc, A. J. Levan, A. Nicuesa Guelbenzu, A. Rossi, B. Milvang-Jensen, D. A. Kann, D. A. Perley, D. J. Watson, D. Malesani, D. Xu, E. Palazzi, E. Pian, F. Hammer, G. Leloudas, G. Tagliaferri, J. Bolmer, J. F. Graham, J. Greiner, J. Hjorth, J. Japelj, J. P. U. Fynbo, J. Selsing, K. Wiersema, L. Kaper, M. Friis, N. R. Tanvir, O. E. Hartoog, P. Goldoni, P. Jakobsson, P. M. J. Afonso, P. M. Vreeswijk, P. Schady, R. Filgas, R. Sanchez-Ramirez, S. Covino, S. D. Vergani, S. Klose, S. Piranomonte, S. Savaglio, S. Schulze, T. Kr\"uhler, V. D'Elia, Z. Cano

arxiv:1505.06743 v3 · 2015-05-25 · 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{ECTQYD2BAWCEAHDHZL6D4F7DMD}

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	2026-05-18T01:32:10.247641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20a70c0f410584401c67cafc3e17e360f7d7dd7e1ffe5a71e31d6e06497a160a

Aliases

arxiv: 1505.06743 · arxiv_version: 1505.06743v3 · doi: 10.48550/arxiv.1505.06743 · pith_short_12: ECTQYD2BAWCE · pith_short_16: ECTQYD2BAWCEAHDH · pith_short_8: ECTQYD2B

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/ECTQYD2BAWCEAHDHZL6D4F7DMD \
  | 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: 20a70c0f410584401c67cafc3e17e360f7d7dd7e1ffe5a71e31d6e06497a160a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6ffa95e7054c1df1423a8b211decdb7f57043b0ce1781bf1161350ba3c98ffe",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-25T20:01:31Z",
    "title_canon_sha256": "374db689cbe8763d0d12168e958242499b8e2e0cce1504a72e6c28a11e53356a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06743",
    "kind": "arxiv",
    "version": 3
  }
}