Pith Number

pith:SF7PTBI4

pith:2014:SF7PTBI4J66GPQHYX72E7OKRRV

not attested not anchored not stored refs pending

Better Feature Tracking Through Subspace Constraints

Arthur Szlam, Bryan Poling, Gilad Lerman

arxiv:1405.2316 v1 · 2014-05-09 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SF7PTBI4J66GPQHYX72E7OKRRV}

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	2026-05-17T23:49:18.241119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

917ef9851c4fbc67c0f8bff44fb9518d5ed4e4091daa7c38e862c9ebdfae863a

Aliases

arxiv: 1405.2316 · arxiv_version: 1405.2316v1 · doi: 10.48550/arxiv.1405.2316 · pith_short_12: SF7PTBI4J66G · pith_short_16: SF7PTBI4J66GPQHY · pith_short_8: SF7PTBI4

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/SF7PTBI4J66GPQHYX72E7OKRRV \
  | 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: 917ef9851c4fbc67c0f8bff44fb9518d5ed4e4091daa7c38e862c9ebdfae863a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffca333ab90cc1a726e8760d74a3523ba676197252d41b3b0e256072b486ad72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-05-09T18:49:49Z",
    "title_canon_sha256": "05814269208d930cbed0f00b2c6c0349bbd10c34f6c6bdefa5a8abf9940c4b14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2316",
    "kind": "arxiv",
    "version": 1
  }
}