Pith Number

pith:U7E6NGSR

pith:2011:U7E6NGSR5YRMB36KDYRFBKQWLY

not attested not anchored not stored refs pending

Dusty Tori of Luminous Type 1 Quasars at z \sim 2

Dean Hines, Gordon T. Richards, Moshe Elitzur, Rajesh P. Deo, Robert Nikutta, Sarah C. Gallagher, Zeljko Ivezic

arxiv:1101.2855 v1 · 2011-01-14 · 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{U7E6NGSR5YRMB36KDYRFBKQWLY}

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	2026-05-18T02:03:39.936703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7c9e69a51ee22c0efca1e2250aa165e37fc52c7d6399de3f03f8eae1ffdda34

Aliases

arxiv: 1101.2855 · arxiv_version: 1101.2855v1 · doi: 10.48550/arxiv.1101.2855 · pith_short_12: U7E6NGSR5YRM · pith_short_16: U7E6NGSR5YRMB36K · pith_short_8: U7E6NGSR

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/U7E6NGSR5YRMB36KDYRFBKQWLY \
  | 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: a7c9e69a51ee22c0efca1e2250aa165e37fc52c7d6399de3f03f8eae1ffdda34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0057980b3beee97b3eec101a28e06010a82a89a8a34a1f71fce0d32d75f63bf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-14T16:30:33Z",
    "title_canon_sha256": "f2115c84485403261d53cd85447e29be1e3db8b34c9471e5d587cdffe11705fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2855",
    "kind": "arxiv",
    "version": 1
  }
}