Pith Number

pith:H3N23R2R

pith:2026:H3N23R2RTOTAA6Z2GYS2JGP6NL

not attested not anchored not stored refs pending

Phantom transitions in language model fine-tuning

Jayasri Dontabhaktuni, Vaibhav Prakash

arxiv:2606.07559 v1 · 2026-05-25 · cs.CL · cs.AI · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3N23R2RTOTAA6Z2GYS2JGP6NL}

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	2026-06-09T00:04:42.950555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3edbadc7519ba6007b3a3625a499fe6ac76182cfdb965eb4dd7bc1c09da51c2f

Aliases

arxiv: 2606.07559 · arxiv_version: 2606.07559v1 · doi: 10.48550/arxiv.2606.07559 · pith_short_12: H3N23R2RTOTA · pith_short_16: H3N23R2RTOTAA6Z2 · pith_short_8: H3N23R2R

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/H3N23R2RTOTAA6Z2GYS2JGP6NL \
  | 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: 3edbadc7519ba6007b3a3625a499fe6ac76182cfdb965eb4dd7bc1c09da51c2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3d684594b1b29ef5be9edd49c19a86a82d77c0282575d5e015f9feffd64f42d",
    "cross_cats_sorted": [
      "cs.AI",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-25T10:44:42Z",
    "title_canon_sha256": "bb1264b167c87cc3ab69ff4c037d252d36b9c936b6fddf816996f43ed41f6584"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.07559",
    "kind": "arxiv",
    "version": 1
  }
}