Pith Number

pith:63BV7JPT

pith:2017:63BV7JPTGHQJCN6MC53SJV3FDR

not attested not anchored not stored refs pending

Universal Walker metrics

Sigbj{\o}rn Hervik, Tom\'a\v{s} M\'alek

arxiv:1710.02164 v2 · 2017-10-05 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{63BV7JPTGHQJCN6MC53SJV3FDR}

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	2026-05-18T00:04:32.360297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6c35fa5f331e09137cc177724d7651c706e0d53bfd4666da251a64e6336387d

Aliases

arxiv: 1710.02164 · arxiv_version: 1710.02164v2 · doi: 10.48550/arxiv.1710.02164 · pith_short_12: 63BV7JPTGHQJ · pith_short_16: 63BV7JPTGHQJCN6M · pith_short_8: 63BV7JPT

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/63BV7JPTGHQJCN6MC53SJV3FDR \
  | 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: f6c35fa5f331e09137cc177724d7651c706e0d53bfd4666da251a64e6336387d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6c1fef9fbbd5b6302cccd61360b826c407ed4acacdadaa3bb914c5590120918",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-10-05T18:04:12Z",
    "title_canon_sha256": "af2e2a4d9f55a2d0eb21b51d4d2bb24171b09b57819f2e6a2ba9ade6ef3a38f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.02164",
    "kind": "arxiv",
    "version": 2
  }
}