Pith Number

pith:5CYDPSLM

pith:2012:5CYDPSLMYOVVEMIYTLFY4DMNXE

not attested not anchored not stored refs pending

The importance of galaxy interactions in triggering type II quasar activity

Clive N. Tadhunter, Cristina Ramos Almeida, Montse Villar-Martin, Patricia Bessiere

arxiv:1207.3260 v1 · 2012-07-13 · 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{5CYDPSLMYOVVEMIYTLFY4DMNXE}

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	2026-05-18T01:56:23.951009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8b037c96cc3ab5231189acb8e0d8db9323b9e821298d66d3ffa9339b631d69c

Aliases

arxiv: 1207.3260 · arxiv_version: 1207.3260v1 · doi: 10.48550/arxiv.1207.3260 · pith_short_12: 5CYDPSLMYOVV · pith_short_16: 5CYDPSLMYOVVEMIY · pith_short_8: 5CYDPSLM

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/5CYDPSLMYOVVEMIYTLFY4DMNXE \
  | 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: e8b037c96cc3ab5231189acb8e0d8db9323b9e821298d66d3ffa9339b631d69c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b64638dd9ee864237102d67c1ce26352f13421777b7485a548187683aaf68ff2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-07-13T14:37:09Z",
    "title_canon_sha256": "be20cfa43766f6f2a3143c70f3bfb47ff7cd532243d2ccf7cc9412253f700b3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3260",
    "kind": "arxiv",
    "version": 1
  }
}