Pith Number

pith:2G6N7OP4

pith:2008:2G6N7OP45HXP23PD3V4IEAXOLG

not attested not anchored not stored refs pending

MASSCLEAN - MASSive CLuster Evolution and ANalysis Package - Description and Tests

Bogdan Popescu, M.M. Hanson

arxiv:0811.4210 v2 · 2008-11-26 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2G6N7OP45HXP23PD3V4IEAXOLG}

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	2026-05-18T02:15:13.092387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1bcdfb9fce9eefd6de3dd788202ee599f47d5edd64ff29da61bf99847d80bc1

Aliases

arxiv: 0811.4210 · arxiv_version: 0811.4210v2 · doi: 10.48550/arxiv.0811.4210 · pith_short_12: 2G6N7OP45HXP · pith_short_16: 2G6N7OP45HXP23PD · pith_short_8: 2G6N7OP4

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/2G6N7OP45HXP23PD3V4IEAXOLG \
  | 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: d1bcdfb9fce9eefd6de3dd788202ee599f47d5edd64ff29da61bf99847d80bc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2abead7a518cd738dbc8120e076121a8d9b5a37bd6a732b185a2a3200da9fb57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-26T04:22:25Z",
    "title_canon_sha256": "7745f034836e999b5d302a4f1a6a26fc2d91e98b4926a62bb634527f1dad7669"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.4210",
    "kind": "arxiv",
    "version": 2
  }
}