Pith Number

pith:Y465EMIX

pith:2012:Y465EMIXDGVW5RKTNJPEEMM5PK

not attested not anchored not stored refs pending

On memory in exponentially expanding spaces

Daniel A. Roberts, Douglas Stanford

arxiv:1210.5238 v2 · 2012-10-18 · 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{Y465EMIXDGVW5RKTNJPEEMM5PK}

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	2026-05-18T01:53:46.353999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c73dd2311719ab6ec5536a5e42319d7a8e5cd1743c37a866c4d665a0a8512aa4

Aliases

arxiv: 1210.5238 · arxiv_version: 1210.5238v2 · doi: 10.48550/arxiv.1210.5238 · pith_short_12: Y465EMIXDGVW · pith_short_16: Y465EMIXDGVW5RKT · pith_short_8: Y465EMIX

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/Y465EMIXDGVW5RKTNJPEEMM5PK \
  | 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: c73dd2311719ab6ec5536a5e42319d7a8e5cd1743c37a866c4d665a0a8512aa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7874ef3e01cccc4d60f32b1f1b39f8e99133ea60e94f18554fd17636244b34bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-10-18T19:59:13Z",
    "title_canon_sha256": "5c96917f51ee6ef12081708a55a1846f70887962b5e222d38a090910666b3429"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.5238",
    "kind": "arxiv",
    "version": 2
  }
}