Pith Number

pith:BDILK3FT

pith:2025:BDILK3FTVVWJIIL3GFDNNUBWSO

not attested not anchored not stored refs pending

On something and nothing: The interface of two types of nothing

Adam Brownstein

arxiv:2508.10006 v1 · 2025-08-05 · physics.hist-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BDILK3FTVVWJIIL3GFDNNUBWSO}

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	2026-07-05T11:53:28.996259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08d0b56cb3ad6c94217b3146d6d03693a31eca4d5ec986033174b6ee2b369093

Aliases

arxiv: 2508.10006 · arxiv_version: 2508.10006v1 · doi: 10.48550/arxiv.2508.10006 · pith_short_12: BDILK3FTVVWJ · pith_short_16: BDILK3FTVVWJIIL3 · pith_short_8: BDILK3FT

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/BDILK3FTVVWJIIL3GFDNNUBWSO \
  | 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: 08d0b56cb3ad6c94217b3146d6d03693a31eca4d5ec986033174b6ee2b369093

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39d9b8832bd8a2a623cbce690227dcfa018af7aae85eab3153ca880d0fcf2c05",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2025-08-05T17:00:37Z",
    "title_canon_sha256": "4e6a4c60ce4840a43e7061935afa11f65dab1f78813c385a4006e45e37e347c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.10006",
    "kind": "arxiv",
    "version": 1
  }
}