Pith Number

pith:QEX6U6LX

pith:2017:QEX6U6LXZGV4PTAUPEOJC36SV7

not attested not anchored not stored refs pending

Will humans even write code in 2040 and what would that mean for extreme heterogeneity in computing?

Alexander J. McCaskey, Geoffroy Vallee, Greg Watson, Jay Jay Billings

arxiv:1712.00676 v2 · 2017-12-02 · cs.SE · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEX6U6LXZGV4PTAUPEOJC36SV7}

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	2026-05-18T00:27:41.481145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

812fea7977c9abc7cc14791c916fd2aff8f42b4a5855303647f584718257855e

Aliases

arxiv: 1712.00676 · arxiv_version: 1712.00676v2 · doi: 10.48550/arxiv.1712.00676 · pith_short_12: QEX6U6LXZGV4 · pith_short_16: QEX6U6LXZGV4PTAU · pith_short_8: QEX6U6LX

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/QEX6U6LXZGV4PTAUPEOJC36SV7 \
  | 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: 812fea7977c9abc7cc14791c916fd2aff8f42b4a5855303647f584718257855e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4d766edc727786a31dd38aece80c187ab9f2ba0b8bf15936da39e81f5baa423",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-12-02T22:57:48Z",
    "title_canon_sha256": "e83d153d7dc5cf047b195c93465344117aa2edc0c58a1fbdab745e2131df8805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.00676",
    "kind": "arxiv",
    "version": 2
  }
}