Pith Number

pith:TIVAA7TU

pith:2017:TIVAA7TUVY5K76U3IS2QEGHSA4

not attested not anchored not stored refs pending

Initial boundary-value problem for the spherically symmetric Einstein equations with fluids with tangential pressure

Filipe C. Mena, Irene Brito

arxiv:1707.08593 v1 · 2017-07-26 · 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{TIVAA7TUVY5K76U3IS2QEGHSA4}

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	2026-05-18T00:32:08.275623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a2a007e74ae3aaffa9b44b50218f207053ead6be0c321173dbf4f9519e7adc7

Aliases

arxiv: 1707.08593 · arxiv_version: 1707.08593v1 · doi: 10.48550/arxiv.1707.08593 · pith_short_12: TIVAA7TUVY5K · pith_short_16: TIVAA7TUVY5K76U3 · pith_short_8: TIVAA7TU

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/TIVAA7TUVY5K76U3IS2QEGHSA4 \
  | 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: 9a2a007e74ae3aaffa9b44b50218f207053ead6be0c321173dbf4f9519e7adc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d63916e1b6a70e6b22ca13e52fa900e109f935bdf4c5fe58ad0bf58ed4e2105",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-07-26T18:08:13Z",
    "title_canon_sha256": "f90bfacce9ea741730bcfce39bdcf0f63afdc242395691b5dda3c0bba594d760"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08593",
    "kind": "arxiv",
    "version": 1
  }
}