Pith Number

pith:KXDFUVJM

pith:2017:KXDFUVJMJCVFCGTVTHPMLE52RB

not attested not anchored not stored refs pending

The possible submillimeter bump and accretion-jet in the central supermassive black hole of NGC 4993

Jianchao Feng (Guizhou normal Univ), Qingwen Wu (Huazhong Univ of Sci, Tech), Xuliang Fan (HUST)

arxiv:1710.09590 v2 · 2017-10-26 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KXDFUVJMJCVFCGTVTHPMLE52RB}

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	2026-05-18T00:20:38.653163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55c65a552c48aa511a7599dec593ba886df545517977f6ef4d6ce917803092c6

Aliases

arxiv: 1710.09590 · arxiv_version: 1710.09590v2 · doi: 10.48550/arxiv.1710.09590 · pith_short_12: KXDFUVJMJCVF · pith_short_16: KXDFUVJMJCVFCGTV · pith_short_8: KXDFUVJM

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/KXDFUVJMJCVFCGTVTHPMLE52RB \
  | 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: 55c65a552c48aa511a7599dec593ba886df545517977f6ef4d6ce917803092c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a6764afd23b0967f15aeecbd17483dd6a5465eb732c1cb5e47103fd407a2ff4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-10-26T08:44:38Z",
    "title_canon_sha256": "8b8958977d579b3ac465b94e1bd63d90f939e1dac30ac5e34b42250c60576ad7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09590",
    "kind": "arxiv",
    "version": 2
  }
}