Pith Number

pith:BNGLG4TM

pith:2019:BNGLG4TMERKCPKTVQKEWEURKG5

not attested not anchored not stored refs pending

Topological surprises in de Sitter QFT in two-dimensions

Henri Epstein, Ugo Moschella

arxiv:1901.10874 v1 · 2019-01-30 · 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{BNGLG4TMERKCPKTVQKEWEURKG5}

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	2026-05-17T23:55:05.821165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b4cb3726c245427aa75828962522a3778be4e58ef4ccbff4d089eeb194d0950

Aliases

arxiv: 1901.10874 · arxiv_version: 1901.10874v1 · doi: 10.48550/arxiv.1901.10874 · pith_short_12: BNGLG4TMERKC · pith_short_16: BNGLG4TMERKCPKTV · pith_short_8: BNGLG4TM

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/BNGLG4TMERKCPKTVQKEWEURKG5 \
  | 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: 0b4cb3726c245427aa75828962522a3778be4e58ef4ccbff4d089eeb194d0950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95917c167509595fc20470e8fe35f9d045d4856f3dbbc2a856079643d7d7525a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-01-30T14:57:28Z",
    "title_canon_sha256": "599bbd2550c536f5a17adfd0e4673e13436268d381d45342f95e0cc37f4b0293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10874",
    "kind": "arxiv",
    "version": 1
  }
}