Pith Number

pith:3WO6T4K5

pith:2026:3WO6T4K5VUN3SKD4PVHEVSGITL

not attested not anchored not stored refs pending

Topic-to-Timestamp Alignment by Constrained Evidence Selection

Marina Litvak, Michael F\"arber, Zeynep Y{\i}lb{\i}rt

arxiv:2606.20890 v1 · 2026-06-18 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3WO6T4K5VUN3SKD4PVHEVSGITL}

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	2026-06-23T00:12:01.900815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd9de9f15dad1bb9287c7d4e4ac8c89ae3ad92dc40fbcf8170c936ebc057ae8e

Aliases

arxiv: 2606.20890 · arxiv_version: 2606.20890v1 · doi: 10.48550/arxiv.2606.20890 · pith_short_12: 3WO6T4K5VUN3 · pith_short_16: 3WO6T4K5VUN3SKD4 · pith_short_8: 3WO6T4K5

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/3WO6T4K5VUN3SKD4PVHEVSGITL \
  | 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: dd9de9f15dad1bb9287c7d4e4ac8c89ae3ad92dc40fbcf8170c936ebc057ae8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8da80ba3608721369d2089d9b24ce2b6668e19436933a9284026560d2e8d49b4",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-18T19:38:57Z",
    "title_canon_sha256": "23f32faa918cb3bb12d20c71869f94158d3ae60f7a88bfe059bd6d9deb971d80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20890",
    "kind": "arxiv",
    "version": 1
  }
}