Pith Number

pith:EPQAUKHL

pith:2017:EPQAUKHLOQCQURCQTCASMS2RJJ

not attested not anchored not stored refs pending

A new upper bound for subspace codes

Daniel Heinlein, Sascha Kurz

arxiv:1703.08712 v1 · 2017-03-25 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EPQAUKHLOQCQURCQTCASMS2RJJ}

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	2026-05-18T00:47:55.792165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23e00a28eb74050a44509881264b514a5de6ba240c43089b3ab9e7d30f42b671

Aliases

arxiv: 1703.08712 · arxiv_version: 1703.08712v1 · doi: 10.48550/arxiv.1703.08712 · pith_short_12: EPQAUKHLOQCQ · pith_short_16: EPQAUKHLOQCQURCQ · pith_short_8: EPQAUKHL

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/EPQAUKHLOQCQURCQTCASMS2RJJ \
  | 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: 23e00a28eb74050a44509881264b514a5de6ba240c43089b3ab9e7d30f42b671

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75450cc23955532a741382df47c4b598c26b217ec27fd6800d8926b361c9f17e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-03-25T16:50:49Z",
    "title_canon_sha256": "16abfb8b52e0a90e0bb319b2e8f52b706eba7e15fd5810af881d6ddb72ec6c12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08712",
    "kind": "arxiv",
    "version": 1
  }
}