Pith Number

pith:RTCIEJIL

pith:2026:RTCIEJILUFRHJ2RERDE3EFE2GR

not attested not anchored not stored refs pending

Temporal Preference Optimization for Unsupervised Retrieval

HyunJin Kim, Jaejun Shim, JinYeong Bak, Young Jin Kim

arxiv:2606.17664 v1 · 2026-06-16 · cs.IR · 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{RTCIEJILUFRHJ2RERDE3EFE2GR}

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	2026-06-19T16:10:18.688205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cc482250ba16274ea2488c9b2149a347ee7ebbd02577637362aabc1db683537

Aliases

arxiv: 2606.17664 · arxiv_version: 2606.17664v1 · doi: 10.48550/arxiv.2606.17664 · pith_short_12: RTCIEJILUFRH · pith_short_16: RTCIEJILUFRHJ2RE · pith_short_8: RTCIEJIL

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/RTCIEJILUFRHJ2RERDE3EFE2GR \
  | 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: 8cc482250ba16274ea2488c9b2149a347ee7ebbd02577637362aabc1db683537

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd79c9b14efb8807159bf94bc339468f525f7170d9376b70c7acfd192469f42f",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-06-16T08:27:22Z",
    "title_canon_sha256": "4fa989d31d89416a7b3e2ca76a242994e0959b9ae65fb69fba8eff2087356a97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.17664",
    "kind": "arxiv",
    "version": 1
  }
}