Pith Number

pith:FDUBQUGG

pith:2012:FDUBQUGGLQCOI7LVDRDU33AZ2E

not attested not anchored not stored refs pending

Measuring the black hole masses in accreting X-ray binaries by detecting the Doppler orbital motion of their accretion disk wind absorption lines

Jinyuan Liao, Shuang-Nan Zhang, Yangsen Yao

arxiv:1201.3451 v1 · 2012-01-17 · astro-ph.HE · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDUBQUGGLQCOI7LVDRDU33AZ2E}

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	2026-05-18T03:38:56.191908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28e81850c65c04e47d751c474dec19d112849b14d9fb00f7f87346a16d6d0538

Aliases

arxiv: 1201.3451 · arxiv_version: 1201.3451v1 · doi: 10.48550/arxiv.1201.3451 · pith_short_12: FDUBQUGGLQCO · pith_short_16: FDUBQUGGLQCOI7LV · pith_short_8: FDUBQUGG

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/FDUBQUGGLQCOI7LVDRDU33AZ2E \
  | 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: 28e81850c65c04e47d751c474dec19d112849b14d9fb00f7f87346a16d6d0538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c453cf11775d37dc2094b84d28c9521ce0bb078d8c638806cf3082c563254c78",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-01-17T08:26:02Z",
    "title_canon_sha256": "ff9c3b73c0a0e5b3ee16ea2a628825eb2a88e155dfc0626b3b16d76679bf68fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3451",
    "kind": "arxiv",
    "version": 1
  }
}