Pith Number

pith:2HFPX2EM

pith:2014:2HFPX2EMP42M2GQHNDBC36UVS2

not attested not anchored not stored refs pending

Chandra and MMT observations of low-mass black hole active galactic nuclei accreting at low rates in dwarf galaxies

(2) Ustc, 3), (3) PRIC, 4), (4) YNAO, (5) Univ. of Arizona), CAS, H. Zhou (2, L. Dou (2), T.-G. Wang (2) ((1) NAOC, W. Yuan (1), X.-B. Dong (2, X. Fan (5)

arxiv:1401.5331 v1 · 2014-01-21 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2HFPX2EMP42M2GQHNDBC36UVS2}

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	2026-05-18T01:45:18.408801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1cafbe88c7f34cd1a0768c22dfa959686f62f401eafcc0d271f66615d1e5442

Aliases

arxiv: 1401.5331 · arxiv_version: 1401.5331v1 · doi: 10.48550/arxiv.1401.5331 · pith_short_12: 2HFPX2EMP42M · pith_short_16: 2HFPX2EMP42M2GQH · pith_short_8: 2HFPX2EM

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/2HFPX2EMP42M2GQHNDBC36UVS2 \
  | 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: d1cafbe88c7f34cd1a0768c22dfa959686f62f401eafcc0d271f66615d1e5442

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc4d2f5e17b1f513b972429fbf271b529a0f18e1e335d3c676db9bc3f4b3c838",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-01-21T14:51:17Z",
    "title_canon_sha256": "7e29af4422f90cbe38971c636373bec194052574da248999eea7c0bb6397db15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5331",
    "kind": "arxiv",
    "version": 1
  }
}