Pith Number

pith:YLFMMANJ

pith:2012:YLFMMANJV2JNB6TEZOFITEG3AA

not attested not anchored not stored refs pending

M - sigma relation between SMBHs and the velocity dispersion of globular cluster systems

Jacques Colin, Raphael Sadoun

arxiv:1204.0144 v2 · 2012-03-31 · 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{YLFMMANJV2JNB6TEZOFITEG3AA}

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	2026-05-18T01:57:59.745195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2cac601a9ae92d0fa64cb8a8990db001d7b2e5b7c7456e85ded78e3ab8c7213

Aliases

arxiv: 1204.0144 · arxiv_version: 1204.0144v2 · doi: 10.48550/arxiv.1204.0144 · pith_short_12: YLFMMANJV2JN · pith_short_16: YLFMMANJV2JNB6TE · pith_short_8: YLFMMANJ

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/YLFMMANJV2JNB6TEZOFITEG3AA \
  | 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: c2cac601a9ae92d0fa64cb8a8990db001d7b2e5b7c7456e85ded78e3ab8c7213

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc96c754d8b4a06724b2447d4424aeb6fc38fbf37dec96a0b6c60d5ca2377dd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-31T22:39:33Z",
    "title_canon_sha256": "f2b73ea4b909f0f848cef9755303b36cb2bb5273cb8cc727515c090698323cac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0144",
    "kind": "arxiv",
    "version": 2
  }
}