Pith Number

pith:GYW4N5RQ

pith:2018:GYW4N5RQLJYLKQSIG2SCPTOHIL

not attested not anchored not stored refs pending

Eclipsing damped Ly$\alpha$ systems in the Sloan Digital Sky Survey Data Release 12

Habib G. Khosroshahi, Hadi Rahmani, Hassan Fathivavsari, Hayley Finley, Isabelle P\^aris, Narges Jamialahmadi, Pasquier Noterdaeme, Patrick Petitjean, Raghunathan Srianand

arxiv:1804.07222 v1 · 2018-04-19 · astro-ph.GA · 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{GYW4N5RQLJYLKQSIG2SCPTOHIL}

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	2026-05-18T00:17:02.971687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

362dc6f6305a70b5424836a427cdc742de59efbd08fa4733cf9b7717e35b87c4

Aliases

arxiv: 1804.07222 · arxiv_version: 1804.07222v1 · doi: 10.48550/arxiv.1804.07222 · pith_short_12: GYW4N5RQLJYL · pith_short_16: GYW4N5RQLJYLKQSI · pith_short_8: GYW4N5RQ

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/GYW4N5RQLJYLKQSIG2SCPTOHIL \
  | 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: 362dc6f6305a70b5424836a427cdc742de59efbd08fa4733cf9b7717e35b87c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "352bb209b7354bec8bebe8183761254c2ae53f88ecb34c2857b37419e745fdfe",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-19T15:26:12Z",
    "title_canon_sha256": "64805f71b0456d9608fb1d92f0d8a37f0fc56b08a0566ee92d34b4be39e0bc84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07222",
    "kind": "arxiv",
    "version": 1
  }
}