Pith Number

pith:3YYPTUL7

pith:1998:3YYPTUL75VM542ROL46KSIJP2P

not attested not anchored not stored refs pending

Dynamic wormholes, anti-trapped surfaces, and energy conditions

David Hochberg, Matt Visser

arxiv:gr-qc/9802046 v2 · 1998-02-17 · 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{3YYPTUL75VM542ROL46KSIJP2P}

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	2026-07-04T15:23:04.211829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de30f9d17fed59de6a2e5f3ca9212fd3f3e2202c65f5833cb449ae23217d2d80

Aliases

arxiv: gr-qc/9802046 · arxiv_version: gr-qc/9802046v2 · doi: 10.48550/arxiv.gr-qc/9802046 · pith_short_12: 3YYPTUL75VM5 · pith_short_16: 3YYPTUL75VM542RO · pith_short_8: 3YYPTUL7

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/3YYPTUL75VM542ROL46KSIJP2P \
  | 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: de30f9d17fed59de6a2e5f3ca9212fd3f3e2202c65f5833cb449ae23217d2d80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5a3a0fcd2acb70e39826eb7d0971d8854275dace4eebb2c5668586aefd3533d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-02-17T18:02:23Z",
    "title_canon_sha256": "30651bbe88caa0f280f40b4370cab576d7d05b1b067585e447af3179237bd7a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9802046",
    "kind": "arxiv",
    "version": 2
  }
}