Pith Number

pith:JJ2MNOXY

pith:2019:JJ2MNOXYXPN3L2TUJXNB4EL3HC

not attested not anchored not stored refs pending

COBS: a Compact Bit-Sliced Signature Index

Florian Gauger, Phelim Bradley, Timo Bingmann, Zamin Iqbal

arxiv:1905.09624 v2 · 2019-05-23 · cs.DB · cs.DS · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JJ2MNOXYXPN3L2TUJXNB4EL3HC}

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	2026-05-17T23:39:30.130871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a74c6baf8bbdbb5ea744dda1e117b38802e0d7454cc0080e7f7673a1d6bddf6

Aliases

arxiv: 1905.09624 · arxiv_version: 1905.09624v2 · doi: 10.48550/arxiv.1905.09624 · pith_short_12: JJ2MNOXYXPN3 · pith_short_16: JJ2MNOXYXPN3L2TU · pith_short_8: JJ2MNOXY

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/JJ2MNOXYXPN3L2TUJXNB4EL3HC \
  | 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: 4a74c6baf8bbdbb5ea744dda1e117b38802e0d7454cc0080e7f7673a1d6bddf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b0fd4d93b61c802f1d0f70e5d0e9893452f049de4c6ec68898b77721e2d1cf1",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2019-05-23T12:49:58Z",
    "title_canon_sha256": "b698fa2a0ef94e33fb54bccba88819795a6afb6bc0c01262a12866e7452c005c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09624",
    "kind": "arxiv",
    "version": 2
  }
}