Pith Number

pith:TBERNSQ3

pith:2001:TBERNSQ3BMPN3MPF4HEI2OKZPO

not attested not anchored not stored refs pending

The Supermassive Black Hole at the Galactic Center

Fulvio Melia (University of Arizona), Heino Falcke (MPIfR Bonn)

arxiv:astro-ph/0106162 v1 · 2001-06-08 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TBERNSQ3BMPN3MPF4HEI2OKZPO}

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.

Cited by

1 paper in Pith

Origins of Supermassive Black Holes in Galactic Centers

Receipt and verification

First computed	2026-07-04T16:23:30.970584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

984916ca1b0b1eddb1e5e1c88d39597bbe791893771bad593596d40fd4f12b4c

Aliases

arxiv: astro-ph/0106162 · arxiv_version: astro-ph/0106162v1 · doi: 10.48550/arxiv.astro-ph/0106162 · pith_short_12: TBERNSQ3BMPN · pith_short_16: TBERNSQ3BMPN3MPF · pith_short_8: TBERNSQ3

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/TBERNSQ3BMPN3MPF4HEI2OKZPO \
  | 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: 984916ca1b0b1eddb1e5e1c88d39597bbe791893771bad593596d40fd4f12b4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8034e955214c154f092f887b361c90dcd0586f1354318b396c763b9b67808be9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-06-08T23:18:15Z",
    "title_canon_sha256": "7f0b025c5cd6546d6923b5c856d1b65c2dc386a7466e41f53c4a53c7c3e1938d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0106162",
    "kind": "arxiv",
    "version": 1
  }
}