Pith. sign in
Pith Number

pith:MYHQLD7N

pith:1996:MYHQLD7N7RNN5Y3X72XLDLPWQX
not attested not anchored not stored refs pending

Restrictions on Negative Energy Density in Flat Spacetime

L.H. Ford, Thomas A. Roman

arxiv:gr-qc/9607003 v2 · 1996-07-01 · gr-qc · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{MYHQLD7N7RNN5Y3X72XLDLPWQX}

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

Receipt and verification
First computed 2026-07-04T16:01:11.506176Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

660f058fedfc5adee377feaeb1adf685dd1a8d018f1c9124b7b9538bcd1fea4c

Aliases

arxiv: gr-qc/9607003 · arxiv_version: gr-qc/9607003v2 · doi: 10.48550/arxiv.gr-qc/9607003 · pith_short_12: MYHQLD7N7RNN · pith_short_16: MYHQLD7N7RNN5Y3X · pith_short_8: MYHQLD7N
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/MYHQLD7N7RNN5Y3X72XLDLPWQX \
  | 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: 660f058fedfc5adee377feaeb1adf685dd1a8d018f1c9124b7b9538bcd1fea4c
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "4082d59a94475e06cc40728678d1e5c28aea41717bade01590d93baa73e43d96",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1996-07-01T17:17:18Z",
    "title_canon_sha256": "51a1cc5a9230edd4d9dad597d460ee62cd77d1d58f177484da8801c79f12d30e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9607003",
    "kind": "arxiv",
    "version": 2
  }
}