Pith Number

pith:EAOYEY2K

pith:2009:EAOYEY2KP5RDHAGKXL53YQLU2G

not attested not anchored not stored refs pending

Exploring the inner region of Type 1 AGNs with the Keck interferometer

(2) UCSB, (3) Isas, (4) NSF), Gerd Weigelt (1) ((1) MPIfR, Konrad R.W. Tristram (1), Makoto Kishimoto (1), Richard Barvainis (4), Robert Antonucci (2), Sebastian F. Hoenig (1), Takayuki Kotani (3)

arxiv:0911.0666 v1 · 2009-11-03 · 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{EAOYEY2KP5RDHAGKXL53YQLU2G}

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	2026-05-18T02:11:00.057031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

201d82634a7f623380cabafbbc4174d18fc3305073f9a629c052ff632be90f1d

Aliases

arxiv: 0911.0666 · arxiv_version: 0911.0666v1 · doi: 10.48550/arxiv.0911.0666 · pith_short_12: EAOYEY2KP5RD · pith_short_16: EAOYEY2KP5RDHAGK · pith_short_8: EAOYEY2K

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/EAOYEY2KP5RDHAGKXL53YQLU2G \
  | 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: 201d82634a7f623380cabafbbc4174d18fc3305073f9a629c052ff632be90f1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f7593733735b47b773bbe67fae0729e2a4d553207e54fe19f24e011333350f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-03T20:27:25Z",
    "title_canon_sha256": "54502564e3c95fe01495b4629061e9a5b2d3298aea57c839835df508d250bcc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0666",
    "kind": "arxiv",
    "version": 1
  }
}