Pith Number

pith:PCGJU2N2

pith:2017:PCGJU2N2WKQX5TICPAKHTSBOG7

not attested not anchored not stored refs pending

Generalized metrics and generalized twistor spaces

Johann Davidov

arxiv:1701.04032 v3 · 2017-01-15 · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PCGJU2N2WKQX5TICPAKHTSBOG7}

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	2026-05-18T00:12:00.685401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

788c9a69bab2a17ecd02781479c82e37ef95c9acc773cd216e8e2d37d02f73bf

Aliases

arxiv: 1701.04032 · arxiv_version: 1701.04032v3 · doi: 10.48550/arxiv.1701.04032 · pith_short_12: PCGJU2N2WKQX · pith_short_16: PCGJU2N2WKQX5TIC · pith_short_8: PCGJU2N2

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/PCGJU2N2WKQX5TICPAKHTSBOG7 \
  | 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: 788c9a69bab2a17ecd02781479c82e37ef95c9acc773cd216e8e2d37d02f73bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "708d985b27f5e2d4fe60667068985085c51ebe23019a80b863b34a7d5ad3e508",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-01-15T12:35:27Z",
    "title_canon_sha256": "e9f8013ff8ec0f79747b0639408d8da97af42ef2ef8a973254e60f897426cd2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04032",
    "kind": "arxiv",
    "version": 3
  }
}