Pith Number

pith:P2SP6W5B

pith:2015:P2SP6W5B4CW2EP5KCP4OFNFXR6

not attested not anchored not stored refs pending

From Seed AI to Technological Singularity via Recursively Self-Improving Software

Roman V. Yampolskiy

arxiv:1502.06512 v1 · 2015-02-23 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2SP6W5B4CW2EP5KCP4OFNFXR6}

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	2026-05-18T02:26:32.357633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ea4ff5ba1e0ada23faa13f8e2b4b78f854540d697d64f284d6f392f835a6118

Aliases

arxiv: 1502.06512 · arxiv_version: 1502.06512v1 · doi: 10.48550/arxiv.1502.06512 · pith_short_12: P2SP6W5B4CW2 · pith_short_16: P2SP6W5B4CW2EP5K · pith_short_8: P2SP6W5B

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/P2SP6W5B4CW2EP5KCP4OFNFXR6 \
  | 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: 7ea4ff5ba1e0ada23faa13f8e2b4b78f854540d697d64f284d6f392f835a6118

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ebb8e655443c5ee2d95efa15ae57ea2a42d6c95550b73cfa334d2d70bbb8e0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2015-02-23T17:08:30Z",
    "title_canon_sha256": "42c17613f2a09e6db8ce09f9350f979aa7d7e247992581d7886f50058c727104"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.06512",
    "kind": "arxiv",
    "version": 1
  }
}