Pith Number

pith:RN4BKFUF

pith:2017:RN4BKFUFBC2GVGVBKTPKAIVFRM

not attested not anchored not stored refs pending

Time evolving fluid from Vaidya spacetime

Bin Wu, Liu Zhao, Xin Hao

arxiv:1704.06951 v1 · 2017-04-23 · 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{RN4BKFUFBC2GVGVBKTPKAIVFRM}

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	2026-05-18T00:37:33.898211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b7815168508b46a9aa154dea022a58b2315c45bdb90bdf3bea0cb990b2e51e8

Aliases

arxiv: 1704.06951 · arxiv_version: 1704.06951v1 · doi: 10.48550/arxiv.1704.06951 · pith_short_12: RN4BKFUFBC2G · pith_short_16: RN4BKFUFBC2GVGVB · pith_short_8: RN4BKFUF

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/RN4BKFUFBC2GVGVBKTPKAIVFRM \
  | 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: 8b7815168508b46a9aa154dea022a58b2315c45bdb90bdf3bea0cb990b2e51e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2a0cd7af026d0169e1a7534fe2897e476dc64f403538c771ff133b20f41f756",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-04-23T17:25:46Z",
    "title_canon_sha256": "b6a9b61e9c875330049177e91422038af6cdf93e66788a2b1a8ccbf0ed701533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06951",
    "kind": "arxiv",
    "version": 1
  }
}