Pith Number

pith:A7PG44JC

pith:2019:A7PG44JCJI74EBP5YFSZBPSTWP

not attested not anchored not stored refs pending

On the black hole content and initial mass function of 47 Tuc

Eduardo Balbinot, Jay Strader, Kaela E.K. Douglas, Mark Gieles, Miklos Peuten, Vincent H\'enault-Brunet

arxiv:1908.08538 v2 · 2019-08-22 · astro-ph.GA · 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{A7PG44JCJI74EBP5YFSZBPSTWP}

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	2026-07-05T00:31:55.825787Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07de6e71224a3fc205fdc16590be53b3ddbad42964a1c99e94fbe4e12a6d32bd

Aliases

arxiv: 1908.08538 · arxiv_version: 1908.08538v2 · doi: 10.48550/arxiv.1908.08538 · pith_short_12: A7PG44JCJI74 · pith_short_16: A7PG44JCJI74EBP5 · pith_short_8: A7PG44JC

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/A7PG44JCJI74EBP5YFSZBPSTWP \
  | 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: 07de6e71224a3fc205fdc16590be53b3ddbad42964a1c99e94fbe4e12a6d32bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bec36e0969ab3bf3568f727bafe5f9eb22f232e57f95450751fa6623d8d90466",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-22T18:00:00Z",
    "title_canon_sha256": "76cd0e9d8c12064b0faed81b79fcaecfd1c2b8cc35b5ec859c3ada444d7e7dc6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08538",
    "kind": "arxiv",
    "version": 2
  }
}