Pith Number

pith:6TLTTXSY

pith:2009:6TLTTXSYQSYQ3P7WFLL22IKW4O

not attested not anchored not stored refs pending

Dichotomy in host environments and signs of recycled AGN

Diego G. Lambas, Georgina V. Coldwell, Ilona K. Soechting, Sebastian Gurovich

arxiv:0906.4090 v1 · 2009-06-22 · astro-ph.GA · 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{6TLTTXSYQSYQ3P7WFLL22IKW4O}

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	2026-05-18T02:13:13.368180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4d739de5884b10dbff62ad7ad2156e3855c9a858273ee7ff625e8abc348804a

Aliases

arxiv: 0906.4090 · arxiv_version: 0906.4090v1 · doi: 10.48550/arxiv.0906.4090 · pith_short_12: 6TLTTXSYQSYQ · pith_short_16: 6TLTTXSYQSYQ3P7W · pith_short_8: 6TLTTXSY

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/6TLTTXSYQSYQ3P7WFLL22IKW4O \
  | 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: f4d739de5884b10dbff62ad7ad2156e3855c9a858273ee7ff625e8abc348804a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "118ecb05de779779706689bcdf34a88c6cc9f577fa60f8d4f19447781c65d890",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-06-22T18:26:55Z",
    "title_canon_sha256": "2a5af6aac487c3eabb99092f4a11ebfb319eb6a75d64e1354842c65a20fd34e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.4090",
    "kind": "arxiv",
    "version": 1
  }
}