Pith Number

pith:FW4YG2TL

pith:2021:FW4YG2TLNZ3VUKRZS6Q76WGHAD

not attested not anchored not stored refs pending

Reconstruction of the Density Power Spectrum from Quasar Spectra using Machine Learning

Maria Han Veiga, Nickolay Y. Gnedin, Oleg Y. Gnedin, Xi Meng, Xun Huan

arxiv:2107.09082 v1 · 2021-07-19 · astro-ph.CO · astro-ph.IM · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FW4YG2TLNZ3VUKRZS6Q76WGHAD}

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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

Uncertainty-Aware Deep Learning for the Ly$\alpha$ Forest: CNN-Based Absorber Detection and Characterization

Receipt and verification

First computed	2026-07-05T02:59:25.915463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2db9836a6b6e775a2a3997a1ff58c700e7fbb0226466211f51e4331c9f2b1129

Aliases

arxiv: 2107.09082 · arxiv_version: 2107.09082v1 · doi: 10.48550/arxiv.2107.09082 · pith_short_12: FW4YG2TLNZ3V · pith_short_16: FW4YG2TLNZ3VUKRZ · pith_short_8: FW4YG2TL

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/FW4YG2TLNZ3VUKRZS6Q76WGHAD \
  | 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: 2db9836a6b6e775a2a3997a1ff58c700e7fbb0226466211f51e4331c9f2b1129

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ebd0a6b4fc0633f90c6b705deb11a4d4d3f36b25e11809baedc801f4d645171",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-07-19T18:00:06Z",
    "title_canon_sha256": "ef026257a052ee2f3f2491f7c666b552719a641a24633b8fb87468e4306be286"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.09082",
    "kind": "arxiv",
    "version": 1
  }
}