Pith Number

pith:R6HPDMZT

pith:2017:R6HPDMZTOWTR4RNDEITULYH74R

not attested not anchored not stored refs pending

The stable Picard group of $\mathcal{A}(2)$

Nicolas Ricka, Prasit Bhattacharya

arxiv:1702.01493 v1 · 2017-02-06 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R6HPDMZTOWTR4RNDEITULYH74R}

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	2026-05-18T00:51:23.282891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f8ef1b33375a71e45a3222745e0ffe4773f176a16211284fcadccbf9e9a16c0

Aliases

arxiv: 1702.01493 · arxiv_version: 1702.01493v1 · doi: 10.48550/arxiv.1702.01493 · pith_short_12: R6HPDMZTOWTR · pith_short_16: R6HPDMZTOWTR4RND · pith_short_8: R6HPDMZT

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/R6HPDMZTOWTR4RNDEITULYH74R \
  | 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: 8f8ef1b33375a71e45a3222745e0ffe4773f176a16211284fcadccbf9e9a16c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4afd5285a836e2ce0fed067c00089573e95ee724835cae9b7b43459abc50f162",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-02-06T04:42:14Z",
    "title_canon_sha256": "7c2cc0c361964153d1ad1b97c103bcc14a27e7bef8c6a6685f647a774bc337f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.01493",
    "kind": "arxiv",
    "version": 1
  }
}