Pith Number

pith:SUYFS77O

pith:2013:SUYFS77OBKR76NWXNGJAHD6XOV

not attested not anchored not stored refs pending

Smooth non-zero rest-mass evolution across time-like infinity

Helmut Friedrich

arxiv:1311.0700 v2 · 2013-11-04 · 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{SUYFS77OBKR76NWXNGJAHD6XOV}

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	2026-05-18T02:58:34.628231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9530597fee0aa3ff36d76992038fd77554aeb3a79f84e98c212ebf3ca4369e3e

Aliases

arxiv: 1311.0700 · arxiv_version: 1311.0700v2 · doi: 10.48550/arxiv.1311.0700 · pith_short_12: SUYFS77OBKR7 · pith_short_16: SUYFS77OBKR76NWX · pith_short_8: SUYFS77O

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/SUYFS77OBKR76NWXNGJAHD6XOV \
  | 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: 9530597fee0aa3ff36d76992038fd77554aeb3a79f84e98c212ebf3ca4369e3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0284dac7206cb8756884144a04672fd4d291289e7dcdb216a17df9623b19bd45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-11-04T13:52:52Z",
    "title_canon_sha256": "07391eec2c4811589fb57f973b028c08b5ab6c68ab76aa8347a72934f252b3ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0700",
    "kind": "arxiv",
    "version": 2
  }
}