Pith Number

pith:LGAIMLHZ

pith:2021:LGAIMLHZYDGI25ADBEI7VFKQD4

not attested not anchored not stored refs pending

Quantum gravity might restrict a cyclic evolution

Bao-Fei Li, Parampreet Singh

arxiv:2108.12553 v1 · 2021-08-28 · gr-qc · astro-ph.CO · 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{LGAIMLHZYDGI25ADBEI7VFKQD4}

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.

Cited by

1 paper in Pith

Lessons from gauge fixing and polymerization of loop quantum black holes with a cosmological constant

Receipt and verification

First computed	2026-07-05T04:04:20.338238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5980862cf9c0cc8d74030911fa95501f26abe825f6e8fe3a3ebc2ac4500f176c

Aliases

arxiv: 2108.12553 · arxiv_version: 2108.12553v1 · doi: 10.48550/arxiv.2108.12553 · pith_short_12: LGAIMLHZYDGI · pith_short_16: LGAIMLHZYDGI25AD · pith_short_8: LGAIMLHZ

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/LGAIMLHZYDGI25ADBEI7VFKQD4 \
  | 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: 5980862cf9c0cc8d74030911fa95501f26abe825f6e8fe3a3ebc2ac4500f176c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51c49cda27b511e865b207ebb72cc642a3e47f70461a29077a3c11980fb17976",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-08-28T02:31:58Z",
    "title_canon_sha256": "deefa104f3c3dff03293e130599424277660c6726bafcc5e0bae764e9bb71db9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.12553",
    "kind": "arxiv",
    "version": 1
  }
}