Pith Number

pith:EKHOZ5GU

pith:2014:EKHOZ5GUWFRULQWH2P2VZA3JG5

not attested not anchored not stored refs pending

First gravitational lensing mass estimate of a damped Lyman-alpha galaxy at z=2.2

C. Grillo, J. P. U. Fynbo

arxiv:1401.5073 v1 · 2014-01-20 · astro-ph.CO · 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{EKHOZ5GUWFRULQWH2P2VZA3JG5}

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	2026-05-18T01:45:18.756837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

228eecf4d4b16345c2c7d3f55c836937742c3b1dbd2c76a2a64268a6b5412174

Aliases

arxiv: 1401.5073 · arxiv_version: 1401.5073v1 · doi: 10.48550/arxiv.1401.5073 · pith_short_12: EKHOZ5GUWFRU · pith_short_16: EKHOZ5GUWFRULQWH · pith_short_8: EKHOZ5GU

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/EKHOZ5GUWFRULQWH2P2VZA3JG5 \
  | 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: 228eecf4d4b16345c2c7d3f55c836937742c3b1dbd2c76a2a64268a6b5412174

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "636efb460398dcc8ee054fde321b1041acd22b8dc9e920c5418ab7e0eddb5098",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-01-20T21:00:20Z",
    "title_canon_sha256": "57575c221838aa8e127f3a77c9663c4dd9767026e6a8efac27e93cf822ec87e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5073",
    "kind": "arxiv",
    "version": 1
  }
}