Pith Number

pith:DCTMI2JL

pith:2021:DCTMI2JLSE3CQBHHGJ5YJFI6IK

not attested not anchored not stored refs pending

The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: The Damped Lyman-$\alpha$ systems Catalog

Alma X. Gonzalez-Morales, Andreu Font-Ribera, Axel de la Macorra, Bela Abolfathi, Corentin Ravoux, Donald P. Schneider, Graziano Rossi, Ignasi P\'erez-R\'afols, James Rich, Jean-Marc Le Goff, Julianna Stermer, Matthew M. Pieri, Patrick Petitjean, Sol\`ene Chabanier, Thomas Etourneau

arxiv:2107.09612 v2 · 2021-07-20 · astro-ph.CO · astro-ph.GA · physics.data-an

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DCTMI2JLSE3CQBHHGJ5YJFI6IK}

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.

Cited by

1 paper in Pith

Machine Learning Techniques for Astrophysics and Cosmology: Lyman-$\alpha$ forest

Receipt and verification

First computed	2026-07-05T03:51:29.663151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18a6c4692b91362804e7327b84951e4280ac3013f5cf1b127029ecb9cb1f2e94

Aliases

arxiv: 2107.09612 · arxiv_version: 2107.09612v2 · doi: 10.48550/arxiv.2107.09612 · pith_short_12: DCTMI2JLSE3C · pith_short_16: DCTMI2JLSE3CQBHH · pith_short_8: DCTMI2JL

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/DCTMI2JLSE3CQBHHGJ5YJFI6IK \
  | 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: 18a6c4692b91362804e7327b84951e4280ac3013f5cf1b127029ecb9cb1f2e94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4952772377cccab71bed5e9652c9edcbf043580ee58f726c000f4493c6caa3eb",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-07-20T16:45:01Z",
    "title_canon_sha256": "67e2e18367f59fb6a442bb57ec748cb2c27dc1d4dc5909d90d93ba43db9e9547"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09612",
    "kind": "arxiv",
    "version": 2
  }
}