Pith Number

pith:7TLPVRND

pith:2011:7TLPVRNDTE2D76TJ3C6T42CMYA

not attested not anchored not stored refs pending

Weighing Super-Massive Black Holes with Narrow Fe K$\alpha$ Line

Junxian Wang, Peng Jiang, Xinwen Shu

arxiv:1103.1927 v2 · 2011-03-10 · 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{7TLPVRNDTE2D76TJ3C6T42CMYA}

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	2026-05-18T04:22:39.786349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcd6fac5a399343ffa69d8bd3e684cc006c502baef1543bdbb9a78fe32ee7e23

Aliases

arxiv: 1103.1927 · arxiv_version: 1103.1927v2 · doi: 10.48550/arxiv.1103.1927 · pith_short_12: 7TLPVRNDTE2D · pith_short_16: 7TLPVRNDTE2D76TJ · pith_short_8: 7TLPVRND

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/7TLPVRNDTE2D76TJ3C6T42CMYA \
  | 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: fcd6fac5a399343ffa69d8bd3e684cc006c502baef1543bdbb9a78fe32ee7e23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e05d4f03e0f6be80a1718d84b020f014a6128959b3e2367216eb8f79f0e3397",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-03-10T02:30:45Z",
    "title_canon_sha256": "af244b9d3cbefde9ebc6bd5e0509a59f7beab6347c4189754b69695bc4855278"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1927",
    "kind": "arxiv",
    "version": 2
  }
}