Pith Number

pith:UD25Z7SK

pith:2016:UD25Z7SKK7SRUTDH6N62GGXOHI

not attested not anchored not stored refs pending

Edge Detection Based Shape Identification

Amrindra Pal, Sandeep Sharma, Sumit Pandey, Vivek Kumar

arxiv:1604.02030 v1 · 2016-04-07 · 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{UD25Z7SKK7SRUTDH6N62GGXOHI}

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	2026-05-18T01:17:31.403502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0f5dcfe4a57e51a4c67f37da31aee3a1492a04afb2ea2312f6d55c71f52bdba

Aliases

arxiv: 1604.02030 · arxiv_version: 1604.02030v1 · doi: 10.48550/arxiv.1604.02030 · pith_short_12: UD25Z7SKK7SR · pith_short_16: UD25Z7SKK7SRUTDH · pith_short_8: UD25Z7SK

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/UD25Z7SKK7SRUTDH6N62GGXOHI \
  | 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: a0f5dcfe4a57e51a4c67f37da31aee3a1492a04afb2ea2312f6d55c71f52bdba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d22e5e3e126adbd2eb4ab16bda450c1e2097053d71809dae0ef229831764c8d5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-04-07T15:09:08Z",
    "title_canon_sha256": "7b5d0e0332aaa598d03f5cb2e68def8e1be6d24e60e5527a49cd36b821b74c73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02030",
    "kind": "arxiv",
    "version": 1
  }
}