Pith Number

pith:S7HWDRIE

pith:2015:S7HWDRIEXBFPYV5LMW5ZOT7RJL

not attested not anchored not stored refs pending

Null distance on a spacetime

Carlos Vega, Christina Sormani

arxiv:1508.00531 v2 · 2015-08-03 · 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{S7HWDRIEXBFPYV5LMW5ZOT7RJL}

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	2026-05-18T00:49:34.968951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97cf61c504b84afc57ab65bb974ff14ae0ad30d78f7467b53abdc9fb1bcc37cb

Aliases

arxiv: 1508.00531 · arxiv_version: 1508.00531v2 · doi: 10.48550/arxiv.1508.00531 · pith_short_12: S7HWDRIEXBFP · pith_short_16: S7HWDRIEXBFPYV5L · pith_short_8: S7HWDRIE

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/S7HWDRIEXBFPYV5LMW5ZOT7RJL \
  | 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: 97cf61c504b84afc57ab65bb974ff14ae0ad30d78f7467b53abdc9fb1bcc37cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18de4df907a45b6fe648bcf1396de1c92543ec2483d7b2e767158bcc499d20b6",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-08-03T19:00:05Z",
    "title_canon_sha256": "51e0a0913a756c66f3367f2480b0da6f8e884aedcab5e334e4cc7cb6971cafb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.00531",
    "kind": "arxiv",
    "version": 2
  }
}