Pith Number

pith:VRJCTBM6

pith:2026:VRJCTBM6HHFOOOQIR32NLGLMAJ

not attested not anchored not stored refs pending

Collaborative Threshold Watermarking

Anish Ambreth, Nils Lukas, Tameem Bakr

arxiv:2602.10765 v2 · 2026-02-11 · 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{VRJCTBM6HHFOOOQIR32NLGLMAJ}

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	2026-05-29T01:04:36.915409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac5229859e39cae73a088ef4d5996c027a831b7be1adbbb8fa96390d05c6baa6

Aliases

arxiv: 2602.10765 · arxiv_version: 2602.10765v2 · doi: 10.48550/arxiv.2602.10765 · pith_short_12: VRJCTBM6HHFO · pith_short_16: VRJCTBM6HHFOOOQI · pith_short_8: VRJCTBM6

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/VRJCTBM6HHFOOOQIR32NLGLMAJ \
  | 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: ac5229859e39cae73a088ef4d5996c027a831b7be1adbbb8fa96390d05c6baa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78eae4e66123061d5059cf636f35f94438e71ca569b1eb102b319aa27d8cc568",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-11T11:51:41Z",
    "title_canon_sha256": "627e5ade29fb526fa7fd7589e9371703bc74e1f31f76007f2264de044be2839f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.10765",
    "kind": "arxiv",
    "version": 2
  }
}