Pith Number

pith:KE2TK5YX

pith:2011:KE2TK5YXWK2GPK6QNPJITP3H3A

not attested not anchored not stored refs pending

The angular momentum of disc galaxies: implications for gas accretion, outflows, and dynamical friction

Aaron A. Dutton (Victoria), Frank C. van den Bosch (Yale)

arxiv:1108.0663 v2 · 2011-08-02 · astro-ph.CO · 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{KE2TK5YXWK2GPK6QNPJITP3H3A}

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	2026-05-18T02:01:04.052370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5135357717b2b467abd06bd289bf67d82106dccf1563400166d639bdc8fc3b60

Aliases

arxiv: 1108.0663 · arxiv_version: 1108.0663v2 · doi: 10.48550/arxiv.1108.0663 · pith_short_12: KE2TK5YXWK2G · pith_short_16: KE2TK5YXWK2GPK6Q · pith_short_8: KE2TK5YX

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/KE2TK5YXWK2GPK6QNPJITP3H3A \
  | 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: 5135357717b2b467abd06bd289bf67d82106dccf1563400166d639bdc8fc3b60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "163d300827a0eb5e065a0fc6a37f74eec53504041bab7e9f6f5cfbde2c699f56",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-02T20:00:01Z",
    "title_canon_sha256": "378f0f58f9d815e2a04cba3cbef9bead7c4d0fb5a313b558193262b78776c8c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0663",
    "kind": "arxiv",
    "version": 2
  }
}