Pith Number

pith:Y5MIPERY

pith:2021:Y5MIPERYIQHCNKOLQJWW4PQXGB

not attested not anchored not stored refs pending

RCSEDv2: Processing and analysis of 4+ million galaxy spectra

Anastasia Kasparova, Evgenii Rubtsov, Igor Chilingarian, Ivan Katkov, Kirill Grishin, Sviatoslav Borisov, Victoria Toptun, Vladimir Goradzhanov, Vladislav Klochkov

arxiv:2112.04865 v1 · 2021-12-09 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5MIPERYIQHCNKOLQJWW4PQXGB}

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	2026-07-05T03:39:26.324533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c758879238440e26a9cb826d6e3e1730675eff5ed65b1cde3ff9c0c8adc3c1de

Aliases

arxiv: 2112.04865 · arxiv_version: 2112.04865v1 · doi: 10.48550/arxiv.2112.04865 · pith_short_12: Y5MIPERYIQHC · pith_short_16: Y5MIPERYIQHCNKOL · pith_short_8: Y5MIPERY

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/Y5MIPERYIQHCNKOLQJWW4PQXGB \
  | 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: c758879238440e26a9cb826d6e3e1730675eff5ed65b1cde3ff9c0c8adc3c1de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4a0ab4a54d0c3b6228a765045adcf3f039888b67e3ec95ef9af9356cdcd808c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-12-09T12:33:56Z",
    "title_canon_sha256": "9725fcfe381ca5ecfc62b6ac5916945a384f1a0f97adccfbe7170989886f40e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.04865",
    "kind": "arxiv",
    "version": 1
  }
}