Pith Number

pith:ULXRKPIQ

pith:2023:ULXRKPIQQ7N4EUYHDSI4FYCQQR

not attested not anchored not stored refs pending

The Swansong of the Galactic Center Source X7: An Extreme Example of Tidal Evolution near the Supermassive Black Hole

Abhimat K. Gautam, Andrea M. Ghez, Anna Ciurlo, Aurelien Hees, Devin S. Chu, Eric E. Becklin, Gregory D. Martinez, Jessica R. Lu, Kelly Kosmo O'neil, Mark R. Morris, Rainer Schoedel, Randall D. Campbell, Rory O. Bentley, Shoko Sakai, Smadar Naoz, Tuan Do, Yash A. Gursahani

arxiv:2301.06562 v1 · 2023-01-16 · 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{ULXRKPIQQ7N4EUYHDSI4FYCQQR}

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	2026-07-05T05:46:35.446639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2ef153d1087dbc253071c91c2e0508479ae22aaee83482330e2c9c1ae2174d6

Aliases

arxiv: 2301.06562 · arxiv_version: 2301.06562v1 · doi: 10.48550/arxiv.2301.06562 · pith_short_12: ULXRKPIQQ7N4 · pith_short_16: ULXRKPIQQ7N4EUYH · pith_short_8: ULXRKPIQ

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/ULXRKPIQQ7N4EUYHDSI4FYCQQR \
  | 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: a2ef153d1087dbc253071c91c2e0508479ae22aaee83482330e2c9c1ae2174d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "322a5655ead83f99245669513f7274291c48276e49a7a6328ca1cac84e883bb7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-01-16T19:00:01Z",
    "title_canon_sha256": "a449a9ae35b7721127b7d94ed768a2224962bd6da3bc51983d6e781cfce9071c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.06562",
    "kind": "arxiv",
    "version": 1
  }
}