Pith Number

pith:C6NU4FGE

pith:2016:C6NU4FGEABUBTCXJIQ6ATYLXSV

not attested not anchored not stored refs pending

Was there a negative vacuum energy in your past?

George Chapline, James Barbieri

arxiv:1602.01152 v2 · 2016-02-02 · 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{C6NU4FGEABUBTCXJIQ6ATYLXSV}

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	2026-05-18T01:21:10.849375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

179b4e14c40068198ae9443c09e177957d042521d28e811dcfa50f003aec4802

Aliases

arxiv: 1602.01152 · arxiv_version: 1602.01152v2 · doi: 10.48550/arxiv.1602.01152 · pith_short_12: C6NU4FGEABUB · pith_short_16: C6NU4FGEABUBTCXJ · pith_short_8: C6NU4FGE

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/C6NU4FGEABUBTCXJIQ6ATYLXSV \
  | 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: 179b4e14c40068198ae9443c09e177957d042521d28e811dcfa50f003aec4802

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59a866a7c96278eb715a2b6a88aa856b1a3095208430747452b3690ee9634b5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-02-02T23:12:25Z",
    "title_canon_sha256": "977a4046fa138ca47026e1ae2b375547ef45e2b8c7fd67449af4ca82161838a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.01152",
    "kind": "arxiv",
    "version": 2
  }
}