Pith Number

pith:CJ2MPI7G

pith:2012:CJ2MPI7GJY2LWFQKPMSQ7A5DVG

not attested not anchored not stored refs pending

Mass estimate of the Swift J 164449.3+573451 supermassive black hole based on the 3:2 QPO resonance hypothesis

F. K. Liu, M. A. Abramowicz

arxiv:1210.2641 v1 · 2012-10-09 · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CJ2MPI7GJY2LWFQKPMSQ7A5DVG}

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	2026-05-18T01:54:03.988370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1274c7a3e64e34bb160a7b250f83a3a9b9d48dbb827dce64f597cd17b4e337ce

Aliases

arxiv: 1210.2641 · arxiv_version: 1210.2641v1 · doi: 10.48550/arxiv.1210.2641 · pith_short_12: CJ2MPI7GJY2L · pith_short_16: CJ2MPI7GJY2LWFQK · pith_short_8: CJ2MPI7G

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/CJ2MPI7GJY2LWFQKPMSQ7A5DVG \
  | 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: 1274c7a3e64e34bb160a7b250f83a3a9b9d48dbb827dce64f597cd17b4e337ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1a97c835fdf5e15e75dd906b5ae9d958693adb0ad009a9616918b1ee0d386d8",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-10-09T15:30:21Z",
    "title_canon_sha256": "b7d178a2f055e03947c7126dd7218f634c7e92da43287b281d0c2c7c3fc6c06c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.2641",
    "kind": "arxiv",
    "version": 1
  }
}