Pith Number

pith:H4OTFAIK

pith:2017:H4OTFAIKUKZZDIIELOSKHPWPOJ

not attested not anchored not stored refs pending

Labeling spherically symmetric spacetimes with the Ricci tensor

Joan Josep Ferrando, Juan Antonio S\'aez

arxiv:1701.05023 v1 · 2017-01-18 · 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{H4OTFAIKUKZZDIIELOSKHPWPOJ}

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	2026-05-18T00:52:12.728701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f1d32810aa2b391a1045ba4a3becf72424c5113be1632a7967546f425b7648e

Aliases

arxiv: 1701.05023 · arxiv_version: 1701.05023v1 · doi: 10.48550/arxiv.1701.05023 · pith_short_12: H4OTFAIKUKZZ · pith_short_16: H4OTFAIKUKZZDIIE · pith_short_8: H4OTFAIK

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/H4OTFAIKUKZZDIIELOSKHPWPOJ \
  | 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: 3f1d32810aa2b391a1045ba4a3becf72424c5113be1632a7967546f425b7648e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75b2a5882d1e5eef7f2da211426e4ebf08dceb7c151a5822b1d85d01ff785174",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-01-18T12:00:55Z",
    "title_canon_sha256": "8c614d4965132f5623cacf43657d4264434fe2d60f9aec131d8db3412b2a92d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05023",
    "kind": "arxiv",
    "version": 1
  }
}