Pith Number

pith:27ISP5JX

pith:2009:27ISP5JXVVFUL2G7L4ASXR4RO2

not attested not anchored not stored refs pending

Static Isotropic Spacetimes with Radially Imperfect Fluids

Tomasz Konopka

arxiv:0908.3573 v1 · 2009-08-25 · 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{27ISP5JXVVFUL2G7L4ASXR4RO2}

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	2026-05-18T02:12:23.262914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7d127f537ad4b45e8df5f012bc7917684712aedc2b2507d81e77f38e1c1cb8b

Aliases

arxiv: 0908.3573 · arxiv_version: 0908.3573v1 · doi: 10.48550/arxiv.0908.3573 · pith_short_12: 27ISP5JXVVFU · pith_short_16: 27ISP5JXVVFUL2G7 · pith_short_8: 27ISP5JX

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/27ISP5JXVVFUL2G7L4ASXR4RO2 \
  | 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: d7d127f537ad4b45e8df5f012bc7917684712aedc2b2507d81e77f38e1c1cb8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b14c4504211f209762d4aa1e9b375cd1f73afc16ea6f95bfbfce0803668ec086",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-08-25T09:09:57Z",
    "title_canon_sha256": "1fe49e6605b11e9fd357583dbb38fd74c3f4f520ad264b5bc0fa9d4373936a1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3573",
    "kind": "arxiv",
    "version": 1
  }
}