Pith Number

pith:K7OPOES5

pith:2021:K7OPOES5HSZSDULSVIJCC4QUCJ

not attested not anchored not stored refs pending

Physical Drivers of Emission Line Diversity of SDSS Seyfert 2s and LINERs After Removal of Contributions by Star Formation

Christopher J. Agostino, David C. Koo, Pin-Song Zhao, Samir Salim, S. M. Faber, Sofia Quiros, St\'ephanie Juneau, Yifei Luo, Yimeng Tang

arxiv:2108.07812 v1 · 2021-08-17 · 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{K7OPOES5HSZSDULSVIJCC4QUCJ}

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	2026-07-05T03:38:28.284140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57dcf7125d3cb321d172aa12217214125411cb705c68ae2bf395acfa15511671

Aliases

arxiv: 2108.07812 · arxiv_version: 2108.07812v1 · doi: 10.48550/arxiv.2108.07812 · pith_short_12: K7OPOES5HSZS · pith_short_16: K7OPOES5HSZSDULS · pith_short_8: K7OPOES5

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/K7OPOES5HSZSDULSVIJCC4QUCJ \
  | 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: 57dcf7125d3cb321d172aa12217214125411cb705c68ae2bf395acfa15511671

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b015ec64275328633d205705298fcf14db82efa8fe0a0ecd05c806cca1a3cf9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-08-17T18:00:00Z",
    "title_canon_sha256": "818c25da2f79d7283755aa1066a0425979b2569b1592f1450d20af7abe4cdcaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.07812",
    "kind": "arxiv",
    "version": 1
  }
}