Pith Number

pith:FBPNARLC

pith:2018:FBPNARLCZZCVZAWYQ2FAIBVETW

not attested not anchored not stored refs pending

On complex and real identifiability of tensors

Elena Angelini

arxiv:1801.08311 v1 · 2018-01-25 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FBPNARLCZZCVZAWYQ2FAIBVETW}

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	2026-05-18T00:01:38.732614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

285ed04562ce455c82d8868a0406a49db400ef6108e3d7c8dc413646fa0e29ff

Aliases

arxiv: 1801.08311 · arxiv_version: 1801.08311v1 · doi: 10.48550/arxiv.1801.08311 · pith_short_12: FBPNARLCZZCV · pith_short_16: FBPNARLCZZCVZAWY · pith_short_8: FBPNARLC

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/FBPNARLCZZCVZAWYQ2FAIBVETW \
  | 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: 285ed04562ce455c82d8868a0406a49db400ef6108e3d7c8dc413646fa0e29ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c2a80a37979b09d21260bd4c5ec1027fc46a89ed93222ebbd5c2b57b8a98443",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-01-25T08:48:13Z",
    "title_canon_sha256": "cfaa907c8e24875d930fa0609cc851904598914a10cdca4f697de0a1311601b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.08311",
    "kind": "arxiv",
    "version": 1
  }
}