Pith Number

pith:A5MAZMJB

pith:2019:A5MAZMJBTMIFBOG7KQJFSMHC44

not attested not anchored not stored refs pending

Black hole mass estimation for Active Galactic Nuclei from a new angle

Brice M\'enard, Dalya Baron

arxiv:1903.01996 v1 · 2019-03-05 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A5MAZMJBTMIFBOG7KQJFSMHC44}

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	2026-05-17T23:42:23.063351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07580cb1219b1050b8df54125930e2e734ca9a30c4ad11c86c7c507a27acb7b4

Aliases

arxiv: 1903.01996 · arxiv_version: 1903.01996v1 · doi: 10.48550/arxiv.1903.01996 · pith_short_12: A5MAZMJBTMIF · pith_short_16: A5MAZMJBTMIFBOG7 · pith_short_8: A5MAZMJB

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/A5MAZMJBTMIFBOG7KQJFSMHC44 \
  | 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: 07580cb1219b1050b8df54125930e2e734ca9a30c4ad11c86c7c507a27acb7b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc9c2abbb31aade591683ee7988e87b4e59c11e1d2cbe8df6106f6b605388542",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-05T19:00:01Z",
    "title_canon_sha256": "b57e695130844e8e8c5423ecc14b528054dd67c69c1b1217bdd51b787cb67892"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01996",
    "kind": "arxiv",
    "version": 1
  }
}