Pith Number

pith:3N3NZQ32

pith:2021:3N3NZQ32VAUJK4RBAXRA2HNALW

not attested not anchored not stored refs pending

Sharpening quasar absorption lines with ESPRESSO: Temperature of warm gas at $z\sim2$, constraints on the Mg isotopic ratio, and structure of cold gas at $z\sim0.5$

A. De Cia, C. Ledoux, G. Duchoquet, J. Bergeron, J.-K. Krogager, K. Telikova, P. Boiss\'e, P. Noterdaeme, S. Balashev, S. L\'opez

arxiv:2105.00697 v1 · 2021-05-03 · 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{3N3NZQ32VAUJK4RBAXRA2HNALW}

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	2026-07-05T02:59:19.912430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db76dcc37aa82895722105e20d1da05d8f60d0154598db781e06691f23310779

Aliases

arxiv: 2105.00697 · arxiv_version: 2105.00697v1 · doi: 10.48550/arxiv.2105.00697 · pith_short_12: 3N3NZQ32VAUJ · pith_short_16: 3N3NZQ32VAUJK4RB · pith_short_8: 3N3NZQ32

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/3N3NZQ32VAUJK4RBAXRA2HNALW \
  | 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: db76dcc37aa82895722105e20d1da05d8f60d0154598db781e06691f23310779

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a492e736b8d25400cac0c650ab215a3acb08a771dc81e73c7e0d2fc21a37e1dc",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-05-03T09:10:05Z",
    "title_canon_sha256": "81c9e51eef5a3d69e692794a1700ebf58080fa748aa42f4e327d23f14a7c7470"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.00697",
    "kind": "arxiv",
    "version": 1
  }
}