Pith Number

pith:JNLVYN36

pith:2013:JNLVYN36VGNOFYQYHA5BX2NVND

not attested not anchored not stored refs pending

There exist no 4-dimensional geodesically equivalent metrics with the same stress-energy tensor

Vladimir S. Matveev, Volodymir Kiosak

arxiv:1302.5273 v1 · 2013-02-21 · math.DG · 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{JNLVYN36VGNOFYQYHA5BX2NVND}

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	2026-05-18T01:31:20.060470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b575c377ea99ae2e218383a1be9b568cf0bf7f6859ca81705f7dd530d2d406f

Aliases

arxiv: 1302.5273 · arxiv_version: 1302.5273v1 · doi: 10.48550/arxiv.1302.5273 · pith_short_12: JNLVYN36VGNO · pith_short_16: JNLVYN36VGNOFYQY · pith_short_8: JNLVYN36

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/JNLVYN36VGNOFYQYHA5BX2NVND \
  | 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: 4b575c377ea99ae2e218383a1be9b568cf0bf7f6859ca81705f7dd530d2d406f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7db7babec7fbbf2af8d7b2c37f244e6c1881b12611480b6e15b1e65ddcc1c7de",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-02-21T13:19:41Z",
    "title_canon_sha256": "bc5148484d38e26e71541741cd1063321560ece99e2a458c1c53147997dfbbf6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5273",
    "kind": "arxiv",
    "version": 1
  }
}