Pith Number

pith:A2R2SHDY

pith:2010:A2R2SHDY5UXIZAZR5LK5YKBBOA

not attested not anchored not stored refs pending

UGC8802: A Massive Disk Galaxy in Formation

Amelie Saintonge, Barbara Catinella, Carsten Kramer, David Schiminovich, Guinevere Kauffmann, Javier Gracia-Carpio, Jing Wang, Linda Tacconi, Martha Haynes, Pierre Cox, Riccardo Giovanelli, Sean M. Moran (JHU), Timothy M. Heckman, Yan-Mei Chen

arxiv:1007.3272 v2 · 2010-07-19 · 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{A2R2SHDY5UXIZAZR5LK5YKBBOA}

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	2026-05-18T02:33:09.010042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06a3a91c78ed2e8c8331ead5dc282170093833f45ec28bf5500ea2353fe8659e

Aliases

arxiv: 1007.3272 · arxiv_version: 1007.3272v2 · doi: 10.48550/arxiv.1007.3272 · pith_short_12: A2R2SHDY5UXI · pith_short_16: A2R2SHDY5UXIZAZR · pith_short_8: A2R2SHDY

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/A2R2SHDY5UXIZAZR5LK5YKBBOA \
  | 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: 06a3a91c78ed2e8c8331ead5dc282170093833f45ec28bf5500ea2353fe8659e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc72152b42d7bccf55e9d5d3d62be504772b239a4706db743bf8cc35ca7bbbeb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-07-19T20:17:41Z",
    "title_canon_sha256": "d32f00650e67cf547ead4369477dc648a99f90b60ff8e17b7478848889eb9251"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.3272",
    "kind": "arxiv",
    "version": 2
  }
}