Pith Number

pith:G4Q565YY

pith:2017:G4Q565YYJR5S6MHSSYR4IGLKZH

not attested not anchored not stored refs pending

Galaxies with Shells in the Illustris Simulation: Metallicity Signatures

Ana-Roxana Pop, Annalisa Pillepich, Lars Hernquist, Nicola C. Amorisco

arxiv:1708.01615 v1 · 2017-08-04 · 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{G4Q565YYJR5S6MHSSYR4IGLKZH}

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	2026-05-18T00:38:35.388999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3721df77184c7b2f30f29623c4196ac9fe5f23a4b9b212efdafdc07184aec0a7

Aliases

arxiv: 1708.01615 · arxiv_version: 1708.01615v1 · doi: 10.48550/arxiv.1708.01615 · pith_short_12: G4Q565YYJR5S · pith_short_16: G4Q565YYJR5S6MHS · pith_short_8: G4Q565YY

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/G4Q565YYJR5S6MHSSYR4IGLKZH \
  | 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: 3721df77184c7b2f30f29623c4196ac9fe5f23a4b9b212efdafdc07184aec0a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c6289a816483409539d8e42eaf77e5ad6d578430cddf7c8147a989939bcebb5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-08-04T18:00:00Z",
    "title_canon_sha256": "268717d016cd49eba98b88bdf8420cb30d34b407224977ab6d1b8ffcd4a9dd0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.01615",
    "kind": "arxiv",
    "version": 1
  }
}