Pith Number

pith:PCIUPIRQ

pith:2019:PCIUPIRQLV4HAWRDLWGSOVEZV5

not attested not anchored not stored refs pending

X-shooter observations of strong H$_2$-bearing DLAs at high redshift

A. V. Ivanchik, C. Ledoux, D. A. Varshalovich, J.-K. Krogager, P. Noterdaeme, P. Petitjean, R. Srianand, S. A. Balashev, V. V. Klimenko

arxiv:1909.11064 v1 · 2019-09-24 · 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{PCIUPIRQLV4HAWRDLWGSOVEZV5}

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	2026-07-05T00:12:08.760324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

789147a2305d78705a235d8d275499af58ac6628a7378dcfcb32c441f2956cf9

Aliases

arxiv: 1909.11064 · arxiv_version: 1909.11064v1 · doi: 10.48550/arxiv.1909.11064 · pith_short_12: PCIUPIRQLV4H · pith_short_16: PCIUPIRQLV4HAWRD · pith_short_8: PCIUPIRQ

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/PCIUPIRQLV4HAWRDLWGSOVEZV5 \
  | 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: 789147a2305d78705a235d8d275499af58ac6628a7378dcfcb32c441f2956cf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac0f7d6da296bf7be4cc63f17adb479f85ed609d14b7ae65399f41f0a5986ba5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-24T17:38:34Z",
    "title_canon_sha256": "82a9893260653af3eb62cd1ab63f5829d799c76f9f6f5b5eff44d4fbc7165b75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.11064",
    "kind": "arxiv",
    "version": 1
  }
}