Pith Number

pith:OD2SKZSI

pith:2015:OD2SKZSIST4IBTJV3FLVF5JHRF

not attested not anchored not stored refs pending

Influences of Radiation Pressures on Mass Estimates of Supermassive Black Holes in AGNs

H. C. Feng, H. T. Liu, J. M. Bai

arxiv:1505.02907 v5 · 2015-05-12 · 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{OD2SKZSIST4IBTJV3FLVF5JHRF}

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	2026-05-18T01:31:02.832000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70f525664894f880cd35d95752f5278977d2e19c906a1b2af9cd233774d272b6

Aliases

arxiv: 1505.02907 · arxiv_version: 1505.02907v5 · doi: 10.48550/arxiv.1505.02907 · pith_short_12: OD2SKZSIST4I · pith_short_16: OD2SKZSIST4IBTJV · pith_short_8: OD2SKZSI

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/OD2SKZSIST4IBTJV3FLVF5JHRF \
  | 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: 70f525664894f880cd35d95752f5278977d2e19c906a1b2af9cd233774d272b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "271b621c3036d9ca2a86ae7a0af99469dbf14fdd5d5f65c1e762a33615d5ef14",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-12T08:42:28Z",
    "title_canon_sha256": "aea1fde196e24602c3f20c8b9764948928f82a4380f6d365161784dff2103447"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02907",
    "kind": "arxiv",
    "version": 5
  }
}