Pith Number

pith:HMCTO2SZ

pith:2023:HMCTO2SZP46CQE6KCC4Q43CSA3

not attested not anchored not stored refs pending

Non-negative matrix factorization approach to sky subtraction for optical spectroscopy

Fedor Kolganov, Igor Chilingarian, Kirill Grishin

arxiv:2312.06761 v1 · 2023-12-11 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HMCTO2SZP46CQE6KCC4Q43CSA3}

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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

Sky Background Building of Multi-objective Fiber spectra Based on Mutual Information Network

Receipt and verification

First computed	2026-07-05T07:22:52.524826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b05376a597f3c2813ca10b90e6c5206cce1951d4127146429604d2fddd97336

Aliases

arxiv: 2312.06761 · arxiv_version: 2312.06761v1 · doi: 10.48550/arxiv.2312.06761 · pith_short_12: HMCTO2SZP46C · pith_short_16: HMCTO2SZP46CQE6K · pith_short_8: HMCTO2SZ

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/HMCTO2SZP46CQE6KCC4Q43CSA3 \
  | 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: 3b05376a597f3c2813ca10b90e6c5206cce1951d4127146429604d2fddd97336

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "512a43ed4b2fca3233cc9c8ed7e7ee2c687fabed562a07d27d84c28d0be09cd4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2023-12-11T19:00:01Z",
    "title_canon_sha256": "2afc7ce9c3ded754729bf199c32716a782ed161c5b584455111203ff4dd2d317"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.06761",
    "kind": "arxiv",
    "version": 1
  }
}