Pith Number

pith:LJ5VHG4C

pith:2017:LJ5VHG4CBFSCFW2QWVP6CJNDMH

not attested not anchored not stored refs pending

Long-term optical spectral monitoring of NGC 7469

A. Kovacevi\'c, Alla I. Shapovalova, A. N. Burenkov, D. Ili\'c, J. R. Valdes, L. Carrasco, L. C. Popovi\'c, N. G. Bochkarev, O. Spiridonova, V. E. Zhdanova, V. H. Chavushyan, V. L. Afanasiev, V. Patino-Alvarez, W. Kollatschny

arxiv:1701.01490 v1 · 2017-01-05 · 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{LJ5VHG4CBFSCFW2QWVP6CJNDMH}

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	2026-05-18T00:53:16.707604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a7b539b82096422db50b55fe125a361f4db764ce78c695e9949bfa94ce34ce3

Aliases

arxiv: 1701.01490 · arxiv_version: 1701.01490v1 · doi: 10.48550/arxiv.1701.01490 · pith_short_12: LJ5VHG4CBFSC · pith_short_16: LJ5VHG4CBFSCFW2Q · pith_short_8: LJ5VHG4C

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/LJ5VHG4CBFSCFW2QWVP6CJNDMH \
  | 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: 5a7b539b82096422db50b55fe125a361f4db764ce78c695e9949bfa94ce34ce3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "125404aa4f271ee78314f483eae95ba18df89f88faed987019c0c118dfbb3edd",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-01-05T21:56:52Z",
    "title_canon_sha256": "1589b515590fb4c8721699dac144fb4e0c9ae508fd3ecaf1e436779b47ff0028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01490",
    "kind": "arxiv",
    "version": 1
  }
}