Pith Number

pith:ZT3736KL

pith:2015:ZT3736KLWYWOLSCVSTAX5ELNN2

not attested not anchored not stored refs pending

A 5x10^9 Solar Mass Black Hole in NGC 1277 from Adaptive Optics Spectroscopy

(2) Max Planck Institute for Astronomy, (3) The University of Texas at Austin, (4) University of Michigan, (5) European Southern Observatory), Ak{\i}n Y{\i}ld{\i}r{\i}m (2), Bernd Husemann (5) ((1) Texas A&M University, Douglas O. Richstone (4), Jonelle L. Walsh (1), Karl Gebhardt (3), Kayhan G\"ultekin (4), Remco C.E. van den Bosch (2)

arxiv:1511.04455 v1 · 2015-11-13 · 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{ZT3736KLWYWOLSCVSTAX5ELNN2}

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	2026-05-18T01:22:00.526807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccf7fdf94bb62ce5c85594c17e916d6eb712f74d46f712f44f8294456f5f59d1

Aliases

arxiv: 1511.04455 · arxiv_version: 1511.04455v1 · doi: 10.48550/arxiv.1511.04455 · pith_short_12: ZT3736KLWYWO · pith_short_16: ZT3736KLWYWOLSCV · pith_short_8: ZT3736KL

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/ZT3736KLWYWOLSCVSTAX5ELNN2 \
  | 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: ccf7fdf94bb62ce5c85594c17e916d6eb712f74d46f712f44f8294456f5f59d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff0102a44f276bff9e022a59f4d1cf58d6a2b99fa1575b08811ffc6d6d8af694",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-11-13T21:00:45Z",
    "title_canon_sha256": "3a8a7ca666184a50f746bc9979b51e21785c86ddb538fe0ba405626f39b0f441"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04455",
    "kind": "arxiv",
    "version": 1
  }
}