Pith Number

pith:YXESFZVF

pith:2012:YXESFZVFG3QABOIHUAIAEW3ISE

not attested not anchored not stored refs pending

Quasar feedback in the early Universe: the case of SDSS J1148+5251

Bianchi Simone, Raffaella Schneider, Roberto Maiolino, Rosa Valiante, Salvadori Stefania

arxiv:1205.3488 v2 · 2012-05-15 · 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{YXESFZVFG3QABOIHUAIAEW3ISE}

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	2026-05-18T01:57:31.805262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5c922e6a536e000b907a010025b6891041ab91d805b73fbe8644a64102aea57

Aliases

arxiv: 1205.3488 · arxiv_version: 1205.3488v2 · doi: 10.48550/arxiv.1205.3488 · pith_short_12: YXESFZVFG3QA · pith_short_16: YXESFZVFG3QABOIH · pith_short_8: YXESFZVF

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/YXESFZVFG3QABOIHUAIAEW3ISE \
  | 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: c5c922e6a536e000b907a010025b6891041ab91d805b73fbe8644a64102aea57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39b0366a7c9f328e8a313ae87e3e48458469e7e74866498b8e25bbb693feed61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-15T19:58:24Z",
    "title_canon_sha256": "ccebd1994e9f19dc1a644d0f37c77bb4355412bb70e9627689a45ebc9b630ca2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3488",
    "kind": "arxiv",
    "version": 2
  }
}