Pith Number

pith:MMXVRGCG

pith:2010:MMXVRGCG5IUJOXMDWFJRQNCV3R

not attested not anchored not stored refs pending

Protecting subspaces by acting on the outside

Almut Beige, Jonathan Busch

arxiv:1002.3479 v1 · 2010-02-18 · quant-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{MMXVRGCG5IUJOXMDWFJRQNCV3R}

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	2026-05-18T02:08:59.691322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

632f589846ea28975d83b153183455dc4d7cc817884e03b4beb3e832999bd61d

Aliases

arxiv: 1002.3479 · arxiv_version: 1002.3479v1 · doi: 10.48550/arxiv.1002.3479 · pith_short_12: MMXVRGCG5IUJ · pith_short_16: MMXVRGCG5IUJOXMD · pith_short_8: MMXVRGCG

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/MMXVRGCG5IUJOXMDWFJRQNCV3R \
  | 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: 632f589846ea28975d83b153183455dc4d7cc817884e03b4beb3e832999bd61d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c0a043372efc1371cd0e81f0fd13810fb9c1fc4c0ad0cc6fc0b24e6a1624bec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-02-18T11:43:42Z",
    "title_canon_sha256": "9d6cd264b08e29b9d967a347c212683e437dfebd47c16bdd9fe5c0907c458b50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3479",
    "kind": "arxiv",
    "version": 1
  }
}