Pith Number

pith:42BDCZGV

pith:2019:42BDCZGVVPBZNCVQAPPO76EQHT

not attested not anchored not stored refs pending

Impact of Galaxy Mergers on the Colours of Cluster Galaxies

Byeong-Gon Park, Chang H. Ree, Hyunjin Jeong, Jaemann Kyeong, Jinsu Rhee, Joon Hyeop Lee, Keunho Kim, Luis C. Ho, Minjin Kim, Sree Oh, Sukyoung K. Yi, Yun-Kyeong Sheen

arxiv:1907.04858 v2 · 2019-07-10 · 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{42BDCZGVVPBZNCVQAPPO76EQHT}

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	2026-05-17T23:39:42.776064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6823164d5abc3968ab003deeff8903ceee13a2e3ba91a020a56309398d5dfb8

Aliases

arxiv: 1907.04858 · arxiv_version: 1907.04858v2 · doi: 10.48550/arxiv.1907.04858 · pith_short_12: 42BDCZGVVPBZ · pith_short_16: 42BDCZGVVPBZNCVQ · pith_short_8: 42BDCZGV

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/42BDCZGVVPBZNCVQAPPO76EQHT \
  | 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: e6823164d5abc3968ab003deeff8903ceee13a2e3ba91a020a56309398d5dfb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "617f95d645afd8d50c7bf3ae8df5d7b30fbac539e19a433d6cb74bb412a91dbb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-07-10T18:00:00Z",
    "title_canon_sha256": "a7d3bd183f75fe7fa44556636e46b056540667925590b8f0a9fa8266c0b6bee5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04858",
    "kind": "arxiv",
    "version": 2
  }
}