Pith Number record
pith:HXJ35ZRF
pith:2017:HXJ35ZRFQMM4EEEPR626C3W3EE
Protocol
content-addressed
Pith receipt
schema 1.0
- Author
- not author-attested
- Timestamp
- not externally anchored
- Storage
- storage not verified
- References
- references not resolved
DLTK: State of the Art Reference Implementations for Deep Learning on Medical Images
Record completeness checklist
1
Anchor canonical hash to Bitcoin via OpenTimestamps
open
Stamps the canonical SHA-256 (
3dd3bee6258319c2108f8fb5...) across
three calendars. Confirms instantly. Calendars upgrade to a Bitcoin-block proof in a few hours.
2
Mirror to Internet Archive (Wayback Machine)
open
Submits the paper URL to the Internet Archive and records the resulting Wayback capture
URL plus timestamp. Pith does not host the paper.
4
Sign a citation pointing at this record
open
Records a signed citation. Pick a relationship (supports, refutes, extends, uses_method,
depends_on, replaces, compares, cites). Pith signs the assertion server-side.
5
Submit replication, falsification, or formal bridge
open
Public record of a replication attempt, formal bridge (Lean / Coq), or falsification.
Held for moderation. Not peer review; a typed annotation.
Claims
Inbound citations
Receipt
| First computed | 2026-05-18T00:30:15.354880Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature |
Pith Ed25519 (pith-v1-2026-05, fingerprint 8d4b5ee74e4693bc…) · public key
|
| Signature value | +qOi9Tf7ojmEt+Q4hshfN3KbO2+1gFZrGeleBneEZ4RmvyVGKtf4yPpUsS4kXZlyZmh4k0B59/qZirqjSpypBw== |
| Schema | pith-number/v1.0 |
Canonical hash
3dd3bee6258319c2108f8fb5e16edb21102352555bb9e9829f1283ed9d76beb1
Aliases
| Kind | Value |
|---|---|
| arxiv | 1711.06853 |
| arxiv_version | 1711.06853v1 |
| doi | 10.48550/arxiv.1711.06853 |
Agent API
Verify this Pith Number yourself
Three shell lines recompute the canonical hash. If the hash you compute matches the one shown above, the record is intact end-to-end.
curl -sH 'Accept: application/ld+json' https://pith.science/pith/HXJ35ZRFQMM4EEEPR626C3W3EE \
| 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: 3dd3bee6258319c2108f8fb5e16edb21102352555bb9e9829f1283ed9d76beb1
Verify the Pith Ed25519 signature against the published public key:
curl -s https://pith.science/pith-signing-key.json | jq -r .public_key_b64 \
| base64 -d > /tmp/pith_pub.bin
python3 -c "
from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PublicKey
import base64
pub = Ed25519PublicKey.from_public_bytes(open('/tmp/pith_pub.bin','rb').read())
sig = base64.b64decode('+qOi9Tf7ojmEt+Q4hshfN3KbO2+1gFZrGeleBneEZ4RmvyVGKtf4yPpUsS4kXZlyZmh4k0B59/qZirqjSpypBw==')
digest = bytes.fromhex('3dd3bee6258319c2108f8fb5e16edb21102352555bb9e9829f1283ed9d76beb1')
pub.verify(sig, digest)
print('signature OK')"
Show canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "2f701aa756cadc6ddc39eb9066c6f1cf7d9008da9df8ad9a8e3580bc2ac67edf",
"cross_cats_sorted": [
"cs.LG"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"primary_cat": "cs.CV",
"submitted_at": "2017-11-18T12:31:10Z",
"title_canon_sha256": "beac67c0563f1e99f807c6dfcdf6ce2ca772a53a5c856a972d4b27f173e0e5d7"
},
"schema_version": "1.0",
"source": {
"id": "1711.06853",
"kind": "arxiv",
"version": 1
}
}