Pith Number

pith:4GUPUZQ4

pith:2008:4GUPUZQ4EJ2NIGPMTBHSL4XLIM

not attested not anchored not stored refs pending

Dynamics of Galactic Disks and Mergers at z~1.6: Spatially Resolved Spectroscopy with Keck Laser Guide Star Adaptive Optics

Alice E. Shapley, Charles C. Steidel, David R. Law, Dawn K. Erb, James E. Larkin, Shelley A. Wright

arxiv:0810.5599 v1 · 2008-10-31 · 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{4GUPUZQ4EJ2NIGPMTBHSL4XLIM}

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	2026-05-18T02:35:14.094983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1a8fa661c2274d419ec984f25f2eb4329ad318dc2ae94097805e919c69a54e6

Aliases

arxiv: 0810.5599 · arxiv_version: 0810.5599v1 · doi: 10.48550/arxiv.0810.5599 · pith_short_12: 4GUPUZQ4EJ2N · pith_short_16: 4GUPUZQ4EJ2NIGPM · pith_short_8: 4GUPUZQ4

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/4GUPUZQ4EJ2NIGPMTBHSL4XLIM \
  | 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: e1a8fa661c2274d419ec984f25f2eb4329ad318dc2ae94097805e919c69a54e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9b11945c726208b81c0d38853875dda16c6b1bf400bff83160cd4222c1f5148",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-10-31T00:50:56Z",
    "title_canon_sha256": "cb05d114724a777f02efb38f7b99ee1dc0bb68ce9b1ad0b2a39c581451b83692"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.5599",
    "kind": "arxiv",
    "version": 1
  }
}