Pith Number

pith:B2G44H26

pith:2018:B2G44H266ACGE5OGPWFS66XVYX

not attested not anchored not stored refs pending

Exploiting Prior Information in Block Sparse Signals

Arash Amini, Farzan Haddadi, Sajad Daei

arxiv:1804.08444 v2 · 2018-04-20 · cs.IT · math.IT

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

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	2026-05-17T23:39:27.504072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e8dce1f5ef0046275c67d8b2f7af5c5f1e53f5a712a20f11d2b31e40099683f

Aliases

arxiv: 1804.08444 · arxiv_version: 1804.08444v2 · doi: 10.48550/arxiv.1804.08444 · pith_short_12: B2G44H266ACG · pith_short_16: B2G44H266ACGE5OG · pith_short_8: B2G44H26

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/B2G44H266ACGE5OGPWFS66XVYX \
  | 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: 0e8dce1f5ef0046275c67d8b2f7af5c5f1e53f5a712a20f11d2b31e40099683f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a195b51ce6add652e7f596350a6c3c078b37a9a22a7ca9b6d513e00b27880170",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-04-20T07:25:23Z",
    "title_canon_sha256": "94d5f8b247d506c1ed12f5a6dcd2de2eae9c59ae1708bef4e4744c79dcd41c08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08444",
    "kind": "arxiv",
    "version": 2
  }
}