Pith Number

pith:HHH7ZFUP

pith:2012:HHH7ZFUPNDCKXQZHPKT25ZYTD6

not attested not anchored not stored refs pending

Disc galaxy modelling with a particle-by-particle M2M method

Daisuke Kawata, Jason A. S. Hunt

arxiv:1210.5521 v2 · 2012-10-19 · 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{HHH7ZFUPNDCKXQZHPKT25ZYTD6}

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	2026-05-18T01:53:45.687609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39cffc968f68c4abc3277aa7aee7131fa6e8f474d5b00e935d6e531d0c085d71

Aliases

arxiv: 1210.5521 · arxiv_version: 1210.5521v2 · doi: 10.48550/arxiv.1210.5521 · pith_short_12: HHH7ZFUPNDCK · pith_short_16: HHH7ZFUPNDCKXQZH · pith_short_8: HHH7ZFUP

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/HHH7ZFUPNDCKXQZHPKT25ZYTD6 \
  | 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: 39cffc968f68c4abc3277aa7aee7131fa6e8f474d5b00e935d6e531d0c085d71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9083a06c9a156bf00599a05d9799b31667707a2fbdc59017cb546ce3b11ff920",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-19T20:00:01Z",
    "title_canon_sha256": "26e32f5b335d562dceeb7c3f9212fdbf3bbdbfc9ca92a73cfea23169472ea844"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5521",
    "kind": "arxiv",
    "version": 2
  }
}