Pith Number

pith:7R37T3T5

pith:2013:7R37T3T5PRZX6FYPD3UWN7BJ32

not attested not anchored not stored refs pending

Geometric Feature Based Face-Sketch Recognition

Debotosh Bhattacharjee, Sourav Pramanik

arxiv:1312.1462 v1 · 2013-12-05 · 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{7R37T3T5PRZX6FYPD3UWN7BJ32}

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	2026-05-18T03:05:27.231718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc77f9ee7d7c737f170f1ee966fc29deaf8baddbd9e0238321943da6bfae50b6

Aliases

arxiv: 1312.1462 · arxiv_version: 1312.1462v1 · doi: 10.48550/arxiv.1312.1462 · pith_short_12: 7R37T3T5PRZX · pith_short_16: 7R37T3T5PRZX6FYP · pith_short_8: 7R37T3T5

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/7R37T3T5PRZX6FYPD3UWN7BJ32 \
  | 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: fc77f9ee7d7c737f170f1ee966fc29deaf8baddbd9e0238321943da6bfae50b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e18ddd0297650d71df01ebc926b6ef005771db05abd388f7ba5c9bb825fb8d96",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-12-05T08:02:08Z",
    "title_canon_sha256": "24046d55aef1587c911630cd3b527b394c4b25168a4df878a55d27d3ed35c0dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1462",
    "kind": "arxiv",
    "version": 1
  }
}