Pith Number

pith:7TWSQTJV

pith:2018:7TWSQTJV3TJCUZG3KEE7UELQFT

not attested not anchored not stored refs pending

Impetus: Consistent SPH calculations of 3D spherical Bondi accretion onto a black hole

F. Cruz, J. Klapp, J. M. Ramirez-Velasquez, L. Di G. Sigalotti, R. Gabbasov

arxiv:1803.11478 v1 · 2018-03-30 · 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{7TWSQTJV3TJCUZG3KEE7UELQFT}

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	2026-05-18T00:17:37.991765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fced284d35dcd22a64db5109fa11702ce575d7fac1f8eadf4b833f473a529f0d

Aliases

arxiv: 1803.11478 · arxiv_version: 1803.11478v1 · doi: 10.48550/arxiv.1803.11478 · pith_short_12: 7TWSQTJV3TJC · pith_short_16: 7TWSQTJV3TJCUZG3 · pith_short_8: 7TWSQTJV

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/7TWSQTJV3TJCUZG3KEE7UELQFT \
  | 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: fced284d35dcd22a64db5109fa11702ce575d7fac1f8eadf4b833f473a529f0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d57b305f7f40ba4608d90437025ed2ac94da3ce50948a8621f8bd3d2fcc4262b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-30T14:04:24Z",
    "title_canon_sha256": "a5c62b645183c5b0c2e25778fe4f44a99a7149d672ddc74857cad97ed73fdc73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.11478",
    "kind": "arxiv",
    "version": 1
  }
}