Pith Number

pith:UZ253CB6

pith:2026:UZ253CB6KIN4P6V7UJG2D47SEI

not attested not anchored not stored refs pending

A Small-Throat Boundary Condition for the Tunneling Wave Function of the Universe

Masaki Yamada

arxiv:2607.08815 v1 · 2026-07-09 · gr-qc · 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{UZ253CB6KIN4P6V7UJG2D47SEI}

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	2026-07-13T00:17:18.699282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a675dd883e521bc7fabfa24da1f3f2220d0acc60796f31d9129fe391defcc3f8

Aliases

arxiv: 2607.08815 · arxiv_version: 2607.08815v1 · doi: 10.48550/arxiv.2607.08815 · pith_short_12: UZ253CB6KIN4 · pith_short_16: UZ253CB6KIN4P6V7 · pith_short_8: UZ253CB6

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/UZ253CB6KIN4P6V7UJG2D47SEI \
  | 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: a675dd883e521bc7fabfa24da1f3f2220d0acc60796f31d9129fe391defcc3f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e5f85a58fe1f531cbccafcdad4e2d015b088786d1dbaa5b06840ca0fb16c9b9",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-07-09T18:00:00Z",
    "title_canon_sha256": "ca95e7c2c62ed0809c536bd639d8b1c963cb49e79c149bd532ebb80348ac9673"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.08815",
    "kind": "arxiv",
    "version": 1
  }
}