Pith Number

pith:FDEDL6DU

pith:2019:FDEDL6DURTIHV4VOSNNCP6QS77

not attested not anchored not stored refs pending

The Galactic Center: An Improved Astrometric Reference Frame for Stellar Orbits around the Supermassive Black Hole

Abhimat K. Gautam, Andrea Ghez, Aurelien Hees, E. Becklin, Gunther Witzel, Jessica R. Lu, K. Matthews, M.W.Hosek Jr, Shoko Sakai, Siyao Jia, Tuan Do

arxiv:1901.08685 v1 · 2019-01-24 · 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{FDEDL6DURTIHV4VOSNNCP6QS77}

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	2026-05-17T23:51:30.186072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28c835f8748cd07af2ae935a27fa12ffff6f44d8b5bb6660709b6d899fd11afe

Aliases

arxiv: 1901.08685 · arxiv_version: 1901.08685v1 · doi: 10.48550/arxiv.1901.08685 · pith_short_12: FDEDL6DURTIH · pith_short_16: FDEDL6DURTIHV4VO · pith_short_8: FDEDL6DU

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/FDEDL6DURTIHV4VOSNNCP6QS77 \
  | 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: 28c835f8748cd07af2ae935a27fa12ffff6f44d8b5bb6660709b6d899fd11afe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbc1e479d516a93fd0714c5cb7b249099d61cb7f8ddebf90641b6cc89999b1a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-24T23:27:50Z",
    "title_canon_sha256": "b2062700284384c2bf2f18639dc2e4a1f74164cbe38c5a914fccd803fead0caa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08685",
    "kind": "arxiv",
    "version": 1
  }
}