Pith Number

pith:PEY4G3OK

pith:2015:PEY4G3OK4SQFIRYGOAPWFBZFE6

not attested not anchored not stored refs pending

An X-ray Selected Sample of Candidate Black Holes in Dwarf Galaxies

Amy Reines, Elena Gallo, Jenny Greene, Richard Plotkin, Sean Lemons

arxiv:1502.06958 v1 · 2015-02-24 · astro-ph.GA · 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{PEY4G3OK4SQFIRYGOAPWFBZFE6}

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	2026-05-18T02:03:34.154479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7931c36dcae4a0544706701f6287252794ff1a46eca25f50ce43cfd4c0080f05

Aliases

arxiv: 1502.06958 · arxiv_version: 1502.06958v1 · doi: 10.48550/arxiv.1502.06958 · pith_short_12: PEY4G3OK4SQF · pith_short_16: PEY4G3OK4SQFIRYG · pith_short_8: PEY4G3OK

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/PEY4G3OK4SQFIRYGOAPWFBZFE6 \
  | 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: 7931c36dcae4a0544706701f6287252794ff1a46eca25f50ce43cfd4c0080f05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67c205756f3f9af6d5793c8b1587b9624e74b78700ac76d0887fd6714ad7a25e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-24T21:00:03Z",
    "title_canon_sha256": "00121703963a8ffe1cd6b5f531a4bcbde8a83b1ad4ff6b6aae8cae4bdc1d5357"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06958",
    "kind": "arxiv",
    "version": 1
  }
}