Pith Number

pith:IAPSQKJ2

pith:2013:IAPSQKJ2ZMMUUTNL6JY3VXRPNK

not attested not anchored not stored refs pending

Submm-bright QSOs at z~2: signposts of co-evolution at high z

A.K. Ali, F.J. Carrera, J.A. Stevens, J.M. Cao Orjales, M.J. Page, M. Symeonidis

arxiv:1302.2844 v1 · 2013-02-12 · 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{IAPSQKJ2ZMMUUTNL6JY3VXRPNK}

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	2026-05-18T03:33:50.611189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

401f28293acb194a4dabf271bade2f6a965fc413fa41f5766ec476deeb1edc14

Aliases

arxiv: 1302.2844 · arxiv_version: 1302.2844v1 · doi: 10.48550/arxiv.1302.2844 · pith_short_12: IAPSQKJ2ZMMU · pith_short_16: IAPSQKJ2ZMMUUTNL · pith_short_8: IAPSQKJ2

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/IAPSQKJ2ZMMUUTNL6JY3VXRPNK \
  | 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: 401f28293acb194a4dabf271bade2f6a965fc413fa41f5766ec476deeb1edc14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a868613593101cef0ce9aeda3550cc37ea45283746f47009bb1e7e1b15cef5b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-02-12T16:18:35Z",
    "title_canon_sha256": "833310003cda351382642a46cc64cf7f666321edfbf063584fe819fa3955c959"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2844",
    "kind": "arxiv",
    "version": 1
  }
}