Pith Number

pith:R4RWZ23M

pith:2005:R4RWZ23M4IJUDFXEB3PEXTB3A2

not attested not anchored not stored refs pending

Universality and backreaction in a general-relativistic accretion of steady fluids

Bogusz Kinasiewicz, Edward Malec, Janusz Karkowski, Patryk Mach, Zdobyslaw Swierczynski

arxiv:gr-qc/0509079 v2 · 2005-09-20 · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4RWZ23M4IJUDFXEB3PEXTB3A2}

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	2026-07-04T17:28:36.615627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f236ceb6ce2134196e40ede4bcc3b0692b381d6bcb093442f2739a09a226d5c

Aliases

arxiv: gr-qc/0509079 · arxiv_version: gr-qc/0509079v2 · doi: 10.48550/arxiv.gr-qc/0509079 · pith_short_12: R4RWZ23M4IJU · pith_short_16: R4RWZ23M4IJUDFXE · pith_short_8: R4RWZ23M

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/R4RWZ23M4IJUDFXEB3PEXTB3A2 \
  | 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: 8f236ceb6ce2134196e40ede4bcc3b0692b381d6bcb093442f2739a09a226d5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bed990316c9a6372b3983adf3db20d6ba3def0d95919c65413d1dedc9e4dec18",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2005-09-20T15:31:40Z",
    "title_canon_sha256": "85c90e4fed919be6ccf91240c669b181133105942b53343130a593cbd315706f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0509079",
    "kind": "arxiv",
    "version": 2
  }
}