Pith Number

pith:VUWTP6X5

pith:2009:VUWTP6X5HAOQAMOIQEYPNVMUGT

not attested not anchored not stored refs pending

Bulk Superconductivity at 2.6 K in Undoped RbFe_2As_2

B. Batlogg, J. Karpinski, R. Puzniak, S. Weyeneth, Z. Bukowski

arxiv:0909.2740 v1 · 2009-09-15 · cond-mat.supr-con · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VUWTP6X5HAOQAMOIQEYPNVMUGT}

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	2026-05-18T04:22:48.950133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad2d37fafd381d0031c88130f6d59434e9a57df3b46cde690da18397e02a86bd

Aliases

arxiv: 0909.2740 · arxiv_version: 0909.2740v1 · doi: 10.48550/arxiv.0909.2740 · pith_short_12: VUWTP6X5HAOQ · pith_short_16: VUWTP6X5HAOQAMOI · pith_short_8: VUWTP6X5

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/VUWTP6X5HAOQAMOIQEYPNVMUGT \
  | 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: ad2d37fafd381d0031c88130f6d59434e9a57df3b46cde690da18397e02a86bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "324184245e33fde8de3a1c5c9cbf5f6a3c0db11dbed2a1b0c00d844cee79d17d",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-09-15T08:19:09Z",
    "title_canon_sha256": "37fa2c2bcd67c550b7f16117dcbb40f3f4d0a8aee69c0322f62bc51ad0981a63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2740",
    "kind": "arxiv",
    "version": 1
  }
}