Pith Number

pith:BUDNBUXC

pith:2019:BUDNBUXCXKWXDT45LZ42R6KFVO

not attested not anchored not stored refs pending

Quantum Null Energy Condition and its (non)saturation in 2d CFTs

Christian Ecker, Daniel Grumiller, Philipp Stanzer, Shahin Sheikh-Jabbari, Wilke van der Schee

arxiv:1901.04499 v2 · 2019-01-14 · hep-th · 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{BUDNBUXCXKWXDT45LZ42R6KFVO}

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

Curious QNEIs from QNEC: New Bounds on Null Energy in Quantum Field Theory

Receipt and verification

First computed	2026-05-17T23:49:32.943563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d06d0d2e2baad71cf9d5e79a8f945ab901b448a0c3ac6023bf74253c0226f5f

Aliases

arxiv: 1901.04499 · arxiv_version: 1901.04499v2 · doi: 10.48550/arxiv.1901.04499 · pith_short_12: BUDNBUXCXKWX · pith_short_16: BUDNBUXCXKWXDT45 · pith_short_8: BUDNBUXC

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/BUDNBUXCXKWXDT45LZ42R6KFVO \
  | 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: 0d06d0d2e2baad71cf9d5e79a8f945ab901b448a0c3ac6023bf74253c0226f5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc71a81d39cae32fcaac8b431f38a52449b3e491c779b85c99954d80eb4de40b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-01-14T19:00:02Z",
    "title_canon_sha256": "714c36e134a1112332ee74d49081038025f19f9a21322ee3be7b57fe355db898"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04499",
    "kind": "arxiv",
    "version": 2
  }
}