Pith Number

pith:XW6QMX3W

pith:2017:XW6QMX3WCFCEF2WLBKA6AXFUBT

not attested not anchored not stored refs pending

Direct Lyman continuum and Lyman-alpha escape observed at redshift 4

A. Comastri, A. Fontana, A. Mercurio, C. Grillo, E. Sani, E. Vanzella, F. Calura, G. B. Caminha, G. Cupani, I. Balestra, K. Caputi, M. Castellano, M. Giavalisco, M. Meneghetti, M. Mignoli, M. Nonino, P. Rosati, R. Gilli, S. Cristiani

arxiv:1712.07661 v2 · 2017-12-20 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XW6QMX3WCFCEF2WLBKA6AXFUBT}

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	2026-05-18T00:19:47.158277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdbd065f76114442eacb0a81e05cb40cdbbc12beaf356fbcb4dc6088dca650d4

Aliases

arxiv: 1712.07661 · arxiv_version: 1712.07661v2 · doi: 10.48550/arxiv.1712.07661 · pith_short_12: XW6QMX3WCFCE · pith_short_16: XW6QMX3WCFCEF2WL · pith_short_8: XW6QMX3W

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/XW6QMX3WCFCEF2WLBKA6AXFUBT \
  | 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: bdbd065f76114442eacb0a81e05cb40cdbbc12beaf356fbcb4dc6088dca650d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69e273b0e02a4d5aefd56e5c1aba5ebea4b284debd4e12892212c6f66e457f83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-12-20T19:00:02Z",
    "title_canon_sha256": "6cf4b6e35a96f0ed249a4f7523b995e5ab7141ca3b13b3adda28cae444539245"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07661",
    "kind": "arxiv",
    "version": 2
  }
}