Pith Number

pith:AFXBY3OA

pith:2017:AFXBY3OA23DXW3DJM5ECBE5FFI

not attested not anchored not stored refs pending

Black Holes, Geons, and Singularities in Metric-Affine Gravity

Antonio Sanchez-Puente

arxiv:1704.06524 v3 · 2017-04-21 · 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{AFXBY3OA23DXW3DJM5ECBE5FFI}

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	2026-05-18T00:39:52.405062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

016e1c6dc0d6c77b6c6967482093a52a0bb5e939e388754b19f2b9e4e507ab08

Aliases

arxiv: 1704.06524 · arxiv_version: 1704.06524v3 · doi: 10.48550/arxiv.1704.06524 · pith_short_12: AFXBY3OA23DX · pith_short_16: AFXBY3OA23DXW3DJ · pith_short_8: AFXBY3OA

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/AFXBY3OA23DXW3DJM5ECBE5FFI \
  | 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: 016e1c6dc0d6c77b6c6967482093a52a0bb5e939e388754b19f2b9e4e507ab08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58d980fd00a2fd92b46400b6880ab6f6f934925e9c94a5e76aa57b547b623f13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-04-21T13:16:14Z",
    "title_canon_sha256": "6ef7d15f835eccc6de4485c9c6137f6b04440860aa4309873483a325e02d9b43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06524",
    "kind": "arxiv",
    "version": 3
  }
}