Pith Number

pith:PX3U7R3N

pith:2014:PX3U7R3N3DV5WYJ6WKDM2NVCKG

not attested not anchored not stored refs pending

Self-guided quantum tomography

Christopher Ferrie

arxiv:1406.4101 v2 · 2014-06-16 · 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{PX3U7R3N3DV5WYJ6WKDM2NVCKG}

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	2026-05-18T02:38:09.699472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7df74fc76dd8ebdb613eb286cd36a251a15f51f01c3089b7dd193248531ae7f5

Aliases

arxiv: 1406.4101 · arxiv_version: 1406.4101v2 · doi: 10.48550/arxiv.1406.4101 · pith_short_12: PX3U7R3N3DV5 · pith_short_16: PX3U7R3N3DV5WYJ6 · pith_short_8: PX3U7R3N

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/PX3U7R3N3DV5WYJ6WKDM2NVCKG \
  | 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: 7df74fc76dd8ebdb613eb286cd36a251a15f51f01c3089b7dd193248531ae7f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c6cac12ff92d95b655f93a013033128e8643b442c72e66a532574f2fd45dd0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-06-16T19:07:20Z",
    "title_canon_sha256": "f4ac1f988e7e65f53f500afa863e814d83ef8bcf0eb37464ec595395213a6dee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4101",
    "kind": "arxiv",
    "version": 2
  }
}