Pith Number

pith:DVHJEVV2

pith:2021:DVHJEVV2BDMY77XAZW22THWBSD

not attested not anchored not stored refs pending

Digging Into Self-Supervised Learning of Feature Descriptors

Iaroslav Melekhov, Juho Kannala, Shuzhe Wang, Xiaotian Li, Zakaria Laskar

arxiv:2110.04773 v1 · 2021-10-10 · 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{DVHJEVV2BDMY77XAZW22THWBSD}

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	2026-07-05T03:21:21.324323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d4e9256ba08d98ffee0cdb5a99ec190f22c15c4359cbe1292abb3873caddd73

Aliases

arxiv: 2110.04773 · arxiv_version: 2110.04773v1 · doi: 10.48550/arxiv.2110.04773 · pith_short_12: DVHJEVV2BDMY · pith_short_16: DVHJEVV2BDMY77XA · pith_short_8: DVHJEVV2

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/DVHJEVV2BDMY77XAZW22THWBSD \
  | 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: 1d4e9256ba08d98ffee0cdb5a99ec190f22c15c4359cbe1292abb3873caddd73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b572a853e72bcc301e3a30794fd0d6d3f8d02f0e079cd7363887ef5cc8ae1525",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-10-10T12:22:44Z",
    "title_canon_sha256": "81b3bca7de822cdcdc2cb975705302bc8a65153df059ee75d14acaded2652d93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.04773",
    "kind": "arxiv",
    "version": 1
  }
}