Pith Number

pith:C4SBLC77

pith:2013:C4SBLC77ACQJ2Q772C56GRH7VN

not attested not anchored not stored refs pending

The Galactic Center: Not an Active Galactic Nucleus

Deokkeun An, Kris Sellgren, Solange V. Ram\'irez

arxiv:1305.0088 v1 · 2013-05-01 · 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{C4SBLC77ACQJ2Q772C56GRH7VN}

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	2026-05-18T01:50:13.748037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1724158bff00a09d43ffd0bbe344ffab4ade9f7860de2397bda0fcd6c2a1bc5f

Aliases

arxiv: 1305.0088 · arxiv_version: 1305.0088v1 · doi: 10.48550/arxiv.1305.0088 · pith_short_12: C4SBLC77ACQJ · pith_short_16: C4SBLC77ACQJ2Q77 · pith_short_8: C4SBLC77

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/C4SBLC77ACQJ2Q772C56GRH7VN \
  | 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: 1724158bff00a09d43ffd0bbe344ffab4ade9f7860de2397bda0fcd6c2a1bc5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c43b9065452a48940bf39d6a7586f40b651ed3c4d275f7e2fffddd323060f81",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-05-01T05:24:04Z",
    "title_canon_sha256": "a4e9c857e9bd511f181744ad9393069ae7637902f035ba8bfd0aade8bbf76129"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0088",
    "kind": "arxiv",
    "version": 1
  }
}