Pith Number

pith:XPIEOYCV

pith:2026:XPIEOYCV7VN3VQW63GIGGLGFBY

not attested not anchored not stored refs pending

The Age-Thickness Relation as a Tracer of the Merger History of Disk Galaxies

Elena D'Onghia, Eloisa Poggio, Lekshmi Thulasidharan, Robert Benjamin, Ronald Drimmel

arxiv:2607.19537 v1 · 2026-07-21 · 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{XPIEOYCV7VN3VQW63GIGGLGFBY}

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	2026-07-23T00:23:55.625330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbd0476055fd5bbac2ded990632cc50e228bad9b069fb58a3541dbab287733dd

Aliases

arxiv: 2607.19537 · arxiv_version: 2607.19537v1 · doi: 10.48550/arxiv.2607.19537 · pith_short_12: XPIEOYCV7VN3 · pith_short_16: XPIEOYCV7VN3VQW6 · pith_short_8: XPIEOYCV

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/XPIEOYCV7VN3VQW63GIGGLGFBY \
  | 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: bbd0476055fd5bbac2ded990632cc50e228bad9b069fb58a3541dbab287733dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3211861ad549a2ac52fc3223545065b04b995e56d26ef56bff91e7ac3dba3c8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-21T19:38:14Z",
    "title_canon_sha256": "b725bb52aa6b05c16d9e654ffbe45b6666296bc78cd79d164efb804175dd7e67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19537",
    "kind": "arxiv",
    "version": 1
  }
}