Pith Number

pith:Q6Z5CTR4

pith:2018:Q6Z5CTR46WHDBLAAGIIQTOWO5E

not attested not anchored not stored refs pending

The first detection of radio recombination lines at cosmological distances

A. G. G. M. Tielens, F. De Gasperin, H. J. A. Rottgering, J. B. R. Oonk, K. L. Emig, M. C. Toribio, P. Salas

arxiv:1811.08104 v1 · 2018-11-20 · 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{Q6Z5CTR46WHDBLAAGIIQTOWO5E}

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	2026-05-17T23:53:24.272202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87b3d14e3cf58e30ac00321109bacee90631eee916f2a13f7cb1058f0eee92b3

Aliases

arxiv: 1811.08104 · arxiv_version: 1811.08104v1 · doi: 10.48550/arxiv.1811.08104 · pith_short_12: Q6Z5CTR46WHD · pith_short_16: Q6Z5CTR46WHDBLAA · pith_short_8: Q6Z5CTR4

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/Q6Z5CTR46WHDBLAAGIIQTOWO5E \
  | 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: 87b3d14e3cf58e30ac00321109bacee90631eee916f2a13f7cb1058f0eee92b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bab4edd889f29d065fec11e5c87d17c5c0f51f05db027dd16fb51ad07aa01a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-20T07:30:28Z",
    "title_canon_sha256": "f661c2ea4e76717915637dbfe66bb9a1aed42be262a744c7bd70aeb3316a4291"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08104",
    "kind": "arxiv",
    "version": 1
  }
}