Pith Number

pith:3BY6UHKR

pith:2007:3BY6UHKRQJCMG4Q5EJLZPNXT2Q

not attested not anchored not stored refs pending

Wormholes with a space- and time-dependent equation of state

Peter K. F. Kuhfittig

arxiv:0707.4665 v2 · 2007-07-31 · 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{3BY6UHKRQJCMG4Q5EJLZPNXT2Q}

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	2026-05-18T04:26:54.891215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d871ea1d518244c3721d225797b6f3d40f3cf1bfb139858dab0ebaddf3366a09

Aliases

arxiv: 0707.4665 · arxiv_version: 0707.4665v2 · doi: 10.48550/arxiv.0707.4665 · pith_short_12: 3BY6UHKRQJCM · pith_short_16: 3BY6UHKRQJCMG4Q5 · pith_short_8: 3BY6UHKR

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/3BY6UHKRQJCMG4Q5EJLZPNXT2Q \
  | 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: d871ea1d518244c3721d225797b6f3d40f3cf1bfb139858dab0ebaddf3366a09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4546f03e4a0b0dae47bfbb929d91aa3a5de8de5525c6131e8a78dcdcefb78c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-07-31T18:01:22Z",
    "title_canon_sha256": "b18e6dca1d23522404eb666f94c037f2f6776b364a27afbe6b21b1d1b3e32744"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.4665",
    "kind": "arxiv",
    "version": 2
  }
}