Pith Number

pith:OKDPVGKS

pith:2012:OKDPVGKSFO2JXI3OAMZG6CJUZU

not attested not anchored not stored refs pending

On the locus of non-rigid hypersurfaces

Aleksandr Pukhlikov, Thomas Eckl

arxiv:1210.3715 v1 · 2012-10-13 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OKDPVGKSFO2JXI3OAMZG6CJUZU}

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	2026-05-18T03:43:17.297899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7286fa99522bb49ba36e03326f0934cd2ce1a137bd45992e56bb74f7f917460c

Aliases

arxiv: 1210.3715 · arxiv_version: 1210.3715v1 · doi: 10.48550/arxiv.1210.3715 · pith_short_12: OKDPVGKSFO2J · pith_short_16: OKDPVGKSFO2JXI3O · pith_short_8: OKDPVGKS

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/OKDPVGKSFO2JXI3OAMZG6CJUZU \
  | 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: 7286fa99522bb49ba36e03326f0934cd2ce1a137bd45992e56bb74f7f917460c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb4fcc2244042dd1a04af5c60be3069e4ce98b150325d66cb74af383412a0962",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-10-13T16:16:03Z",
    "title_canon_sha256": "32d710797a3488a26d3a008351e1c4256cbcfcc51b003dce7f221ba06bad007b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.3715",
    "kind": "arxiv",
    "version": 1
  }
}