Pith Number

pith:Z4CDZB3L

pith:2024:Z4CDZB3LVEWVOAAKOT6VPBRH63

not attested not anchored not stored refs pending

A programmable photonic memory

Farshid Ashtiani

arxiv:2402.04100 v1 · 2024-02-06 · physics.optics · cs.ET

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z4CDZB3LVEWVOAAKOT6VPBRH63}

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	2026-07-05T07:42:02.990279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf043c876ba92d57000a74fd578627f6f5f4060aa5a12e297945b943cda2ee7f

Aliases

arxiv: 2402.04100 · arxiv_version: 2402.04100v1 · doi: 10.48550/arxiv.2402.04100 · pith_short_12: Z4CDZB3LVEWV · pith_short_16: Z4CDZB3LVEWVOAAK · pith_short_8: Z4CDZB3L

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/Z4CDZB3LVEWVOAAKOT6VPBRH63 \
  | 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: cf043c876ba92d57000a74fd578627f6f5f4060aa5a12e297945b943cda2ee7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6260552227315fe80d2f16009cebd488e6d29448c2a893f4a956b6ad162d9d22",
    "cross_cats_sorted": [
      "cs.ET"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2024-02-06T15:54:54Z",
    "title_canon_sha256": "0e47228223e357fbe4b2b7c92e7aa67fe66ccdd4d86b0e60c97138b0e65efdab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.04100",
    "kind": "arxiv",
    "version": 1
  }
}