Pith Number

pith:UR7UUHT4

pith:2011:UR7UUHT4NWT5RN6ZCUCA2SSU2T

not attested not anchored not stored refs pending

The effect of helium-enhanced stellar populations on the ultraviolet-upturn phenomenon of early-type galaxies

Chul Chung, Suk-Jin Yoon, Young-Wook Lee

arxiv:1109.3463 v2 · 2011-09-15 · 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{UR7UUHT4NWT5RN6ZCUCA2SSU2T}

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

Decomposing cool stellar populations with H-band spectral fluctuations: Long-period variable stars in NGC 5128 and carbon stars in NGC 5102

Receipt and verification

First computed	2026-05-18T02:00:32.231562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a47f4a1e7c6da7d8b7d915040d4a54d4e0912b5e15c8087b684cd875ac4a0f0b

Aliases

arxiv: 1109.3463 · arxiv_version: 1109.3463v2 · doi: 10.48550/arxiv.1109.3463 · pith_short_12: UR7UUHT4NWT5 · pith_short_16: UR7UUHT4NWT5RN6Z · pith_short_8: UR7UUHT4

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/UR7UUHT4NWT5RN6ZCUCA2SSU2T \
  | 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: a47f4a1e7c6da7d8b7d915040d4a54d4e0912b5e15c8087b684cd875ac4a0f0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa7ac0a49785e29570318b5d04c3a0e9467b924bf8634db49267fff80c68d94f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-09-15T20:00:29Z",
    "title_canon_sha256": "2a0ecc4329a58013796debadc2e271b9d2616c29553b1dfb488ca5e2a4d68551"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3463",
    "kind": "arxiv",
    "version": 2
  }
}