Pith Number

pith:A6B6NBHC

pith:2014:A6B6NBHCXSD3Q6BJH7YQIUUTF5

not attested not anchored not stored refs pending

Strongly Lensed Jets, Time Delays, and the Value of H0

Anna Barnacka, Ian P. Dell'Antonio, Margaret Geller, Wystan Benbow

arxiv:1408.5898 v2 · 2014-08-25 · 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{A6B6NBHCXSD3Q6BJH7YQIUUTF5}

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	2026-05-18T01:42:13.279952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0783e684e2bc87b878293ff10452932f44225fb8160aed5021575dcde07a5c18

Aliases

arxiv: 1408.5898 · arxiv_version: 1408.5898v2 · doi: 10.48550/arxiv.1408.5898 · pith_short_12: A6B6NBHCXSD3 · pith_short_16: A6B6NBHCXSD3Q6BJ · pith_short_8: A6B6NBHC

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/A6B6NBHCXSD3Q6BJH7YQIUUTF5 \
  | 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: 0783e684e2bc87b878293ff10452932f44225fb8160aed5021575dcde07a5c18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75d99d394f6a9820c47b210c16136da2786713378c6c0ee1159e27d77b2f01bc",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-08-25T20:00:04Z",
    "title_canon_sha256": "2b09fefc9b0d3a2b9a205bf708185810efcb4a574a69555486ec6bdac0e4a84a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5898",
    "kind": "arxiv",
    "version": 2
  }
}