Pith Number

pith:WQBZ7AV4

pith:2010:WQBZ7AV4WMTMYCWOT4JG2TBYIH

not attested not anchored not stored refs pending

IRAS F13308+5946: A Possible Transition Phase From Type I ULIRG To Optical Quasar

Chen Cao, Hong Wu, Jing Wang, Qiu-Sheng Gu, Xian-Min Meng

arxiv:1005.3909 v2 · 2010-05-21 · 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{WQBZ7AV4WMTMYCWOT4JG2TBYIH}

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	2026-05-18T02:07:15.875541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4039f82bcb326cc0ace9f126d4c3841f83b4aeb71e80b84c257a0a6cda10130

Aliases

arxiv: 1005.3909 · arxiv_version: 1005.3909v2 · doi: 10.48550/arxiv.1005.3909 · pith_short_12: WQBZ7AV4WMTM · pith_short_16: WQBZ7AV4WMTMYCWO · pith_short_8: WQBZ7AV4

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/WQBZ7AV4WMTMYCWOT4JG2TBYIH \
  | 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: b4039f82bcb326cc0ace9f126d4c3841f83b4aeb71e80b84c257a0a6cda10130

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b53687d91e18cb9469a787e9aa427f6366e92c5a0388d1b06aa6d4e0e4af2eed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-05-21T08:39:27Z",
    "title_canon_sha256": "52064952b5541d23eb8eac019a82ae947117051a6f87a91ec1bb54b575c2f041"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.3909",
    "kind": "arxiv",
    "version": 2
  }
}