Pith Number

pith:EB2XCYL3

pith:2013:EB2XCYL3GNB35P3OF6P653XTGP

not attested not anchored not stored refs pending

The brightest ULIRG:watching the birth of a quasar

Bjorn Emonts, Emil Lenc, Minnie Y. Mao, Ray P. Norris, Rob G. Sharp

arxiv:1301.3953 v1 · 2013-01-17 · 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{EB2XCYL3GNB35P3OF6P653XTGP}

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	2026-05-18T03:36:14.772341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

207571617b3343bebf6e2f9feeeef333dc6b4797814e85fcc72a9eb2bf8aec4e

Aliases

arxiv: 1301.3953 · arxiv_version: 1301.3953v1 · doi: 10.48550/arxiv.1301.3953 · pith_short_12: EB2XCYL3GNB3 · pith_short_16: EB2XCYL3GNB35P3O · pith_short_8: EB2XCYL3

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/EB2XCYL3GNB35P3OF6P653XTGP \
  | 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: 207571617b3343bebf6e2f9feeeef333dc6b4797814e85fcc72a9eb2bf8aec4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7484f3c713b4d92d4686f7522da67a08c5d8d4239df2cf6167eaf9d837a1c3a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-17T00:34:47Z",
    "title_canon_sha256": "dca4c599260325396b18c8e55fee738476ab161a9990b7622a38e5ff3ba8d896"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3953",
    "kind": "arxiv",
    "version": 1
  }
}