Pith Number

pith:PDAEJEXI

pith:2022:PDAEJEXI5R2M7JSYNKHYIPWFZI

not attested not anchored not stored refs pending

Separating the blue cloud and the red sequence using Otsu's method for image segmentation

Biswajit Pandey

arxiv:2211.15642 v2 · 2022-11-28 · astro-ph.GA · astro-ph.CO · 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{PDAEJEXI5R2M7JSYNKHYIPWFZI}

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

Cosmic-web quenching with DESI DR1: T-Web environments and mass-dependent red/blue classification

Receipt and verification

First computed	2026-07-05T06:26:44.356403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78c04492e8ec74cfa6586a8f843ec5ca02dcfd207dd2c7238e42d783fb4ce3b7

Aliases

arxiv: 2211.15642 · arxiv_version: 2211.15642v2 · doi: 10.48550/arxiv.2211.15642 · pith_short_12: PDAEJEXI5R2M · pith_short_16: PDAEJEXI5R2M7JSY · pith_short_8: PDAEJEXI

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/PDAEJEXI5R2M7JSYNKHYIPWFZI \
  | 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: 78c04492e8ec74cfa6586a8f843ec5ca02dcfd207dd2c7238e42d783fb4ce3b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf4c4a2338e9bcffff76929401dbf1f57eaf80edf0bc25ab103d87082db8b7bd",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-11-28T18:49:24Z",
    "title_canon_sha256": "0c5dd1baed4b28f7b6d6ebeabb4d1c091a5de5ec7cf3e8217335fbdc6ef22431"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.15642",
    "kind": "arxiv",
    "version": 2
  }
}