Pith Number

pith:Z4TTHMFZ

pith:2017:Z4TTHMFZJPOSWC2EPGWGZCQLK3

not attested not anchored not stored refs pending

Measuring black hole mass of type I active galactic nuclei by spectropolarimetry

Jian-Min Wang (IHEP), Yu-Yang Songsheng

arxiv:1709.07203 v1 · 2017-09-21 · 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{Z4TTHMFZJPOSWC2EPGWGZCQLK3}

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	2026-05-18T00:30:41.215218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf2733b0b94bdd2b0b4479ac6c8a0b56fc4e0512f40ea605b6b9df8af2b7114b

Aliases

arxiv: 1709.07203 · arxiv_version: 1709.07203v1 · doi: 10.48550/arxiv.1709.07203 · pith_short_12: Z4TTHMFZJPOS · pith_short_16: Z4TTHMFZJPOSWC2E · pith_short_8: Z4TTHMFZ

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/Z4TTHMFZJPOSWC2EPGWGZCQLK3 \
  | 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: cf2733b0b94bdd2b0b4479ac6c8a0b56fc4e0512f40ea605b6b9df8af2b7114b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e05d8bd8cade80f3ca5733005ad376b13f26ae9cd649167f08bbd937956365ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-21T08:19:34Z",
    "title_canon_sha256": "9e42d6b046633bc9782cec51465e78509705c7f2a78ab5e5e85c53594866a553"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07203",
    "kind": "arxiv",
    "version": 1
  }
}