Pith Number

pith:2ZDBTDZF

pith:2013:2ZDBTDZF5DVHM7WRSVIV6QFZ6P

not attested not anchored not stored refs pending

Massive Star-Forming Host Galaxies of Quasars on Sloan Digital Sky Survey Stripe 82

Matthew S. DiDonato, Michael A. Strauss, Ted N. Price III, Yoshiki Matsuoka

arxiv:1312.2417 v2 · 2013-12-09 · astro-ph.GA · 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{2ZDBTDZF5DVHM7WRSVIV6QFZ6P}

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	2026-05-18T01:45:57.216886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d646198f25e8ea767ed195515f40b9f3ec78539eb7128807340902bb9be77568

Aliases

arxiv: 1312.2417 · arxiv_version: 1312.2417v2 · doi: 10.48550/arxiv.1312.2417 · pith_short_12: 2ZDBTDZF5DVH · pith_short_16: 2ZDBTDZF5DVHM7WR · pith_short_8: 2ZDBTDZF

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/2ZDBTDZF5DVHM7WRSVIV6QFZ6P \
  | 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: d646198f25e8ea767ed195515f40b9f3ec78539eb7128807340902bb9be77568

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8099966ef6c0f0fc71f5bca85dbb0bd888a2e0f4395dd98f8480ad26b224adb",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-12-09T13:19:13Z",
    "title_canon_sha256": "9f95dedfad00aa951219bb2d977353b9ad2d6c421463d7ecdf8c93b96abce3d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2417",
    "kind": "arxiv",
    "version": 2
  }
}