Pith Number

pith:SQJA7OBW

pith:2017:SQJA7OBWDYKV4K2BHNU732RLPS

not attested not anchored not stored refs pending

Hunting Black Holes with Gaia

Abraham Loeb, Natalie Mashian

arxiv:1704.03455 v3 · 2017-04-11 · astro-ph.HE · 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{SQJA7OBWDYKV4K2BHNU732RLPS}

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	2026-05-18T00:39:35.882815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94120fb8361e155e2b413b69fdea2b7c991cf1cc41aef1d16e4a9034e6823446

Aliases

arxiv: 1704.03455 · arxiv_version: 1704.03455v3 · doi: 10.48550/arxiv.1704.03455 · pith_short_12: SQJA7OBWDYKV · pith_short_16: SQJA7OBWDYKV4K2B · pith_short_8: SQJA7OBW

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/SQJA7OBWDYKV4K2BHNU732RLPS \
  | 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: 94120fb8361e155e2b413b69fdea2b7c991cf1cc41aef1d16e4a9034e6823446

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6594080c947cf5280241ebb00043ce41b32f6cc77895925eabd9e7923d364af8",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-04-11T04:04:44Z",
    "title_canon_sha256": "0d6b26be7befd08bc2895582bf4035f3af2e4c351778bd9a12f8bd7bd970941d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03455",
    "kind": "arxiv",
    "version": 3
  }
}