Pith Number

pith:G4MWYTOH

pith:2020:G4MWYTOHHILOWRYEOYP4GI4LHX

not attested not anchored not stored refs pending

Loop quantum gravity, signature change, and the no-boundary proposal

Martin Bojowald, Suddhasattwa Brahma

arxiv:2011.02884 v2 · 2020-11-05 · 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{G4MWYTOHHILOWRYEOYP4GI4LHX}

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	2026-07-05T02:43:30.639483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37196c4dc73a16eb4704761fc3238b3df15932d5d5e2033ea9d01155569b4408

Aliases

arxiv: 2011.02884 · arxiv_version: 2011.02884v2 · doi: 10.48550/arxiv.2011.02884 · pith_short_12: G4MWYTOHHILO · pith_short_16: G4MWYTOHHILOWRYE · pith_short_8: G4MWYTOH

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/G4MWYTOHHILOWRYEOYP4GI4LHX \
  | 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: 37196c4dc73a16eb4704761fc3238b3df15932d5d5e2033ea9d01155569b4408

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40fff687b38ae07700f5dea894ab9eebd5f58134a5257345d00112b4fc8f9e18",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-11-05T14:49:35Z",
    "title_canon_sha256": "a94851406d8692052830f6803f4a1ff1da2114aec2748ee7e5e66da65c447918"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.02884",
    "kind": "arxiv",
    "version": 2
  }
}