Pith Number

pith:ILKEYICI

pith:2018:ILKEYICIVIKA76COI2Z26EGZAW

not attested not anchored not stored refs pending

Redshifted broad absorption line quasars found via machine-learned spectral similarity

Dovi Poznanski, Itamar Reis, Patrick B. Hall

arxiv:1805.09829 v1 · 2018-05-24 · astro-ph.IM · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ILKEYICIVIKA76COI2Z26EGZAW}

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	2026-05-18T00:08:06.819025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42d44c2048aa140ff84e46b3af10d905b4f0505e9644a6ebbceafbd0e88b3c52

Aliases

arxiv: 1805.09829 · arxiv_version: 1805.09829v1 · doi: 10.48550/arxiv.1805.09829 · pith_short_12: ILKEYICIVIKA · pith_short_16: ILKEYICIVIKA76CO · pith_short_8: ILKEYICI

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/ILKEYICIVIKA76COI2Z26EGZAW \
  | 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: 42d44c2048aa140ff84e46b3af10d905b4f0505e9644a6ebbceafbd0e88b3c52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d3a4668ed8f3cb3c00c9ca2fe7d2528f04ecf22a1f4705db317a8adae0ef535",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-05-24T18:00:06Z",
    "title_canon_sha256": "3def9f17a5a85d32fdaa76c2c753e65be35667f8e24bd20a2715f5ed91f29127"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09829",
    "kind": "arxiv",
    "version": 1
  }
}