Pith Number

pith:OBFVBZ2T

pith:2022:OBFVBZ2TUQ6EWIHGZQ3DMKDWJ2

not attested not anchored not stored refs pending

ARChemist: Autonomous Robotic Chemistry System Architecture

Andrew Ian Cooper, Gabriella Pizzuto, Hatem Fakhruldeen, Jakub Glowacki

arxiv:2204.13571 v1 · 2022-04-28 · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBFVBZ2TUQ6EWIHGZQ3DMKDWJ2}

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	2026-07-05T11:26:40.302453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

704b50e753a43c4b20e6cc363628764ea87225b36dbb2458b1e9b14e95c6055b

Aliases

arxiv: 2204.13571 · arxiv_version: 2204.13571v1 · doi: 10.48550/arxiv.2204.13571 · pith_short_12: OBFVBZ2TUQ6E · pith_short_16: OBFVBZ2TUQ6EWIHG · pith_short_8: OBFVBZ2T

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/OBFVBZ2TUQ6EWIHGZQ3DMKDWJ2 \
  | 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: 704b50e753a43c4b20e6cc363628764ea87225b36dbb2458b1e9b14e95c6055b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a56802cadf91a74cdc88d015c99297a4e7d5d88c5b19230c62be847841bc4f74",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2022-04-28T15:34:09Z",
    "title_canon_sha256": "4de9beec8f41db2ecaf03983c7c07ebd341880754ee0ffca55f1e5110235a466"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.13571",
    "kind": "arxiv",
    "version": 1
  }
}