Pith Number

pith:BH7MPDQL

pith:2019:BH7MPDQLTXDHEMOJXAF475ATLQ

not attested not anchored not stored refs pending

A hidden friend for the galactic center black hole, Sgr A*

Andrea M. Ghez, Aurelien Hees, Clifford M. Will, Enrico Ramirez-Ruiz, Smadar Naoz, Tuan Do

arxiv:1912.04910 v1 · 2019-12-10 · astro-ph.GA · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BH7MPDQLTXDHEMOJXAF475ATLQ}

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

3 papers in Pith

Eccentric Stellar-mass Binary Black Holes: Population, Detectability, and Waveform Analysis in the LISA and LIGO Era

The relativistic restricted three-body problem: geometry and motion around tidally perturbed black holes

Receipt and verification

First computed	2026-07-05T11:34:38.672806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09fec78e0b9dc67231c9b80bcff4135c3288dfa7971d443635e3ea61bcb7c14f

Aliases

arxiv: 1912.04910 · arxiv_version: 1912.04910v1 · doi: 10.48550/arxiv.1912.04910 · pith_short_12: BH7MPDQLTXDH · pith_short_16: BH7MPDQLTXDHEMOJ · pith_short_8: BH7MPDQL

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/BH7MPDQLTXDHEMOJXAF475ATLQ \
  | 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: 09fec78e0b9dc67231c9b80bcff4135c3288dfa7971d443635e3ea61bcb7c14f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f724fd73d7d2b1a39f99459435e0ca5b1231a2437807a07f8da51d40b8b229ee",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-12-10T19:00:02Z",
    "title_canon_sha256": "d9e3c879dd659dfb14ee12920e82626e0b8900241ea8f331ea949eb33bb4636e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.04910",
    "kind": "arxiv",
    "version": 1
  }
}