Pith Number

pith:IX2PMFDZ

pith:2021:IX2PMFDZAB73ZHL2RB774WNBT5

not attested not anchored not stored refs pending

A machine learning approach to infer the accreted stellar mass fractions of central galaxies in the TNG100 simulation

Jiaxin Han, Jingjing Shi, Qingyang Li, Rui Shi, Vicente Rodriguez-Gomez, Wenting Wang, Yingjie Peng, Zhaozhou Li

arxiv:2112.07203 v3 · 2021-12-14 · astro-ph.GA · 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{IX2PMFDZAB73ZHL2RB774WNBT5}

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	2026-07-05T04:30:54.235891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45f4f61479007fbc9d7a887ffe59a19f543c8f7a1ba2d875c7a820321a1d4f6d

Aliases

arxiv: 2112.07203 · arxiv_version: 2112.07203v3 · doi: 10.48550/arxiv.2112.07203 · pith_short_12: IX2PMFDZAB73 · pith_short_16: IX2PMFDZAB73ZHL2 · pith_short_8: IX2PMFDZ

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/IX2PMFDZAB73ZHL2RB774WNBT5 \
  | 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: 45f4f61479007fbc9d7a887ffe59a19f543c8f7a1ba2d875c7a820321a1d4f6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12f4df952e74a976100a6688f4443e274571112d0fc10c0e34bc7f2b01f5bfb7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-12-14T07:18:55Z",
    "title_canon_sha256": "6815dbe09ea3cdafbd44cfaf7e193b246e51fc9de90ba0b7055066e63ba49579"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.07203",
    "kind": "arxiv",
    "version": 3
  }
}