Pith Number

pith:FPCZVF7J

pith:2014:FPCZVF7JHIDGLXMJZD6H75XXTW

not attested not anchored not stored refs pending

50 M31 black hole candidates identified by Chandra and XMM-Newton

F. Primini, M. R. Garcia, R. Barnard, S. S. Murray

arxiv:1406.6091 v1 · 2014-06-23 · 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{FPCZVF7JHIDGLXMJZD6H75XXTW}

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	2026-05-18T01:42:51.243071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bc59a97e93a0665dd89c8fc7ff6f79db2ed64d3e050732893ee19fa0efc2a7a

Aliases

arxiv: 1406.6091 · arxiv_version: 1406.6091v1 · doi: 10.48550/arxiv.1406.6091 · pith_short_12: FPCZVF7JHIDG · pith_short_16: FPCZVF7JHIDGLXMJ · pith_short_8: FPCZVF7J

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/FPCZVF7JHIDGLXMJZD6H75XXTW \
  | 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: 2bc59a97e93a0665dd89c8fc7ff6f79db2ed64d3e050732893ee19fa0efc2a7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "256e82a8ec1103334e75d76143b6c22facb756c48eef9e7dd9c189487350778b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-06-23T20:58:49Z",
    "title_canon_sha256": "864cde70dec32dce6b1d6bafa0a5c54da276ad46cd3a0e0693044bc04c46574e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.6091",
    "kind": "arxiv",
    "version": 1
  }
}