Pith Number

pith:HPKHWPYK

pith:2025:HPKHWPYKARHMAC2W242LI5TZYX

not attested not anchored not stored refs pending

CopySpec: Accelerating LLMs with Speculative Copy-and-Paste Without Compromising Quality

Mihai Surdeanu, Minglai Yang, Razvan-Gabriel Dumitru, Vikas Yadav

arxiv:2502.08923 v2 · 2025-02-13 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPKHWPYKARHMAC2W242LI5TZYX}

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	2026-07-05T11:08:16.333511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bd47b3f0a044ec00b56d734b47679c5efb6c075b2947d5671c79c541965be0c

Aliases

arxiv: 2502.08923 · arxiv_version: 2502.08923v2 · doi: 10.48550/arxiv.2502.08923 · pith_short_12: HPKHWPYKARHM · pith_short_16: HPKHWPYKARHMAC2W · pith_short_8: HPKHWPYK

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/HPKHWPYKARHMAC2W242LI5TZYX \
  | 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: 3bd47b3f0a044ec00b56d734b47679c5efb6c075b2947d5671c79c541965be0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5e47e62d8b2f143a75837ed072fe2b94e91e154f35fbf5825dd9fe1458ff244",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-13T03:19:50Z",
    "title_canon_sha256": "0dd342c128e0cb60d7101c2f12d62555a260f5c1a67c4af748524557dcff5228"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.08923",
    "kind": "arxiv",
    "version": 2
  }
}