Pith Number

pith:IGN2YJLH

pith:2006:IGN2YJLHQVSEWUDPTZR72FKPJR

not attested not anchored not stored refs pending

The Influence of Mass and Environment on the Evolution of Early-Type Galaxies

Barbara Lanzoni, Inger Jorgensen, Sperello di Serego Alighieri

arxiv:astro-ph/0607231 v2 · 2006-07-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IGN2YJLHQVSEWUDPTZR72FKPJR}

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	2026-05-18T04:28:58.436494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

419bac256785644b506f9e63fd154f4c58b7c33359594d60e5a839d74942c449

Aliases

arxiv: astro-ph/0607231 · arxiv_version: astro-ph/0607231v2 · doi: 10.48550/arxiv.astro-ph/0607231 · pith_short_12: IGN2YJLHQVSE · pith_short_16: IGN2YJLHQVSEWUDP · pith_short_8: IGN2YJLH

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/IGN2YJLHQVSEWUDPTZR72FKPJR \
  | 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: 419bac256785644b506f9e63fd154f4c58b7c33359594d60e5a839d74942c449

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c77837bd59754bcebaf777f32a4637a1b842585275975806f7444efa5e4319f2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-11T16:05:22Z",
    "title_canon_sha256": "2a35597eed9fe8ea40df4b2a0954aa51d9a19ff963cd6e1655658500540cae9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607231",
    "kind": "arxiv",
    "version": 2
  }
}