Pith Number

pith:6T5DLAO2

pith:2015:6T5DLAO2PUH3ATCOBCAEAWVVHP

not attested not anchored not stored refs pending

Space-time singularities in Weyl manifolds

A. B. Barreto, C. Romero, I. P. Lobo

arxiv:1506.02180 v2 · 2015-06-06 · 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{6T5DLAO2PUH3ATCOBCAEAWVVHP}

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	2026-05-18T01:28:55.314661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4fa3581da7d0fb04c4e0880405ab53bfcc65719740f1657a38a4995e93a739a

Aliases

arxiv: 1506.02180 · arxiv_version: 1506.02180v2 · doi: 10.48550/arxiv.1506.02180 · pith_short_12: 6T5DLAO2PUH3 · pith_short_16: 6T5DLAO2PUH3ATCO · pith_short_8: 6T5DLAO2

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/6T5DLAO2PUH3ATCOBCAEAWVVHP \
  | 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: f4fa3581da7d0fb04c4e0880405ab53bfcc65719740f1657a38a4995e93a739a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f9607e75ad789e8f0b0a3cb1004fade2d8b97d299874c1a4b846e7ffd6b7b25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-06-06T18:51:40Z",
    "title_canon_sha256": "4d0ab444eef51e34e4411fa023a5ae8e11a1da083879d23e56d443141e6b58a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02180",
    "kind": "arxiv",
    "version": 2
  }
}