Pith Number

pith:FR2GUP4Z

pith:2021:FR2GUP4ZC3IUZDNTBTX6B55IVB

not attested not anchored not stored refs pending

From haloes to galaxies. III. The gas cycle of local galaxy populations

Alvio Renzini, Chengpeng Zhang, Di Li, Emanuele Daddi, Feng Yuan, Filippo Mannucci, Jing Dou, Luis C. Ho, Qiusheng Gu, Roberto Maiolino, Simon J. Lilly, Xianzhong Zheng, Yingjie Peng, Yu Gao, Zhizheng Pan

arxiv:2104.12794 v1 · 2021-04-26 · 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{FR2GUP4ZC3IUZDNTBTX6B55IVB}

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	2026-07-05T02:59:19.526470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c746a3f9916d14c8db30cefe0f7a8a86383af5fd886f8aa52e02826f423eb91

Aliases

arxiv: 2104.12794 · arxiv_version: 2104.12794v1 · doi: 10.48550/arxiv.2104.12794 · pith_short_12: FR2GUP4ZC3IU · pith_short_16: FR2GUP4ZC3IUZDNT · pith_short_8: FR2GUP4Z

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/FR2GUP4ZC3IUZDNTBTX6B55IVB \
  | 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: 2c746a3f9916d14c8db30cefe0f7a8a86383af5fd886f8aa52e02826f423eb91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c0077047e72a942a183d884e4c0762dc7b9e2bbac4f4f0418eb4763108bc181",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-26T18:00:10Z",
    "title_canon_sha256": "80e26e94329a5dfc0b792c061f7c18b5ed29363ef3a57d6a22746227873e6c26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.12794",
    "kind": "arxiv",
    "version": 1
  }
}