Pith Number

pith:UGQ4W3GN

pith:2015:UGQ4W3GNHPPOVTVIM2AQVOP33N

not attested not anchored not stored refs pending

Size evolution of normal and compact galaxies in the EAGLE simulation

J. C. Helly, J. Schaye, J. W. Trayford, M. Berthet, M. Furlong, M. Schaller, R. A. Crain, R. G. Bower, T. Theuns, Y. Qu

arxiv:1510.05645 v1 · 2015-10-19 · 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{UGQ4W3GNHPPOVTVIM2AQVOP33N}

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	2026-05-18T00:54:41.295542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1a1cb6ccd3bdeeacea866810ab9fbdb535094d7c6a0318a1b2a4be91066939b

Aliases

arxiv: 1510.05645 · arxiv_version: 1510.05645v1 · doi: 10.48550/arxiv.1510.05645 · pith_short_12: UGQ4W3GNHPPO · pith_short_16: UGQ4W3GNHPPOVTVI · pith_short_8: UGQ4W3GN

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/UGQ4W3GNHPPOVTVIM2AQVOP33N \
  | 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: a1a1cb6ccd3bdeeacea866810ab9fbdb535094d7c6a0318a1b2a4be91066939b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c548a569da58a84ad826c08b78bf6522b9f14eb0aeb8d9ea01f04cf46a9c57e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-10-19T20:12:28Z",
    "title_canon_sha256": "aa0de108648a84604c6fb27db0ab99ae89b1c9c519590340c2ec3a084c3512dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.05645",
    "kind": "arxiv",
    "version": 1
  }
}