Pith Number

pith:XEDL6DMR

pith:2010:XEDL6DMR5VRQSUJXPJ7JDMTOXY

not attested not anchored not stored refs pending

Stellar population gradients from cosmological simulations: dependence on mass and environment in local galaxies

A.D. Romeo, A. Meza, C. Tortora, J. Sommer-Larsen, M. Capaccioli, N.R. Napolitano, V. Antonuccio-Delogu

arxiv:1009.2500 v1 · 2010-09-13 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XEDL6DMR5VRQSUJXPJ7JDMTOXY}

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	2026-05-18T02:05:31.037767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b906bf0d91ed630951377a7e91b26ebe220b70fc7823d81f63a2f464842d8385

Aliases

arxiv: 1009.2500 · arxiv_version: 1009.2500v1 · doi: 10.48550/arxiv.1009.2500 · pith_short_12: XEDL6DMR5VRQ · pith_short_16: XEDL6DMR5VRQSUJX · pith_short_8: XEDL6DMR

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/XEDL6DMR5VRQSUJXPJ7JDMTOXY \
  | 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: b906bf0d91ed630951377a7e91b26ebe220b70fc7823d81f63a2f464842d8385

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cf70fc58b9871637a05ab967975cee375dc831ca3d0b4eac8f232b84d9e6a06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-09-13T20:00:03Z",
    "title_canon_sha256": "f51e6be632dcf230d209ce012b40f6dc6e21f56f4e150be5f06a591124d55482"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2500",
    "kind": "arxiv",
    "version": 1
  }
}