Pith Number

pith:UT7EAQH5

pith:2018:UT7EAQH5S7BN272N76IP7RSBYF

not attested not anchored not stored refs pending

Color Dispersion as an Indicator of Stellar Population Complexity: Insights from the Pixel Color-Magnitude Diagrams of 32 Bright Galaxies in Abell 1139 and Abell 2589

Hye-Ran Lee, Joon Hyeop Lee, Mina Pak, Sree Oh

arxiv:1803.07223 v1 · 2018-03-20 · 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{UT7EAQH5S7BN272N76IP7RSBYF}

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	2026-05-18T00:17:03.878376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4fe4040fd97c2dd7f4dff90ffc641c1547be86f413d0d3980b4d38aa8c29aa9

Aliases

arxiv: 1803.07223 · arxiv_version: 1803.07223v1 · doi: 10.48550/arxiv.1803.07223 · pith_short_12: UT7EAQH5S7BN · pith_short_16: UT7EAQH5S7BN272N · pith_short_8: UT7EAQH5

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/UT7EAQH5S7BN272N76IP7RSBYF \
  | 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: a4fe4040fd97c2dd7f4dff90ffc641c1547be86f413d0d3980b4d38aa8c29aa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e7d8d1548c3f4cb951648161c0e40bb6da7ef37eac91e10ef95a4844323465a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-20T02:31:39Z",
    "title_canon_sha256": "4e7556d34494a15a3c5b339aac063fb139901fef9f8701def0dbf26a15065a46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07223",
    "kind": "arxiv",
    "version": 1
  }
}