Pith Number

pith:UTN2P6TZ

pith:2022:UTN2P6TZI4LYE4E6UMLQZPPWFS

not attested not anchored not stored refs pending

Detailed accretion history of the supermassive black hole in NGC 5972 over the past $\gtrsim$10$^4$ years through the extended emission line region

C. Finlez, D. Tubin, E. Treister, F. Bauer, G. Venturi, L. Sartori, M. Koss, N. Nagar, T. Harvey, W. Keel, W.P. Maksym

arxiv:2208.04911 v1 · 2022-08-09 · 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{UTN2P6TZI4LYE4E6UMLQZPPWFS}

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	2026-07-05T04:57:16.472796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4dba7fa79471782709ea3170cbdf62cbca94ed6253136280c10f5c152048398

Aliases

arxiv: 2208.04911 · arxiv_version: 2208.04911v1 · doi: 10.48550/arxiv.2208.04911 · pith_short_12: UTN2P6TZI4LY · pith_short_16: UTN2P6TZI4LYE4E6 · pith_short_8: UTN2P6TZ

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/UTN2P6TZI4LYE4E6UMLQZPPWFS \
  | 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: a4dba7fa79471782709ea3170cbdf62cbca94ed6253136280c10f5c152048398

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94778756e602e09334da4e48338860c07119412e0d5b83275458abc9c76804bb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-08-09T17:15:22Z",
    "title_canon_sha256": "8c7c377cc0e1bfd17ba9765384068126774cb0b2a18cddf9355aa559199e6cc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.04911",
    "kind": "arxiv",
    "version": 1
  }
}