Pith Number

pith:322J4EE6

pith:2016:322J4EE6UYGF436AMSNOEMXTDH

not attested not anchored not stored refs pending

A survival guide for feeble fish

Alexei Novikov, Dmitri Burago, Sergei Ivanov

arxiv:1605.01702 v2 · 2016-05-05 · math.OC · math.AP · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{322J4EE6UYGF436AMSNOEMXTDH}

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	2026-05-18T01:12:54.716029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

deb49e109ea60c5e6fc0649ae232f319dd0dcadf2119fc40d6aed9c14a3e1e13

Aliases

arxiv: 1605.01702 · arxiv_version: 1605.01702v2 · doi: 10.48550/arxiv.1605.01702 · pith_short_12: 322J4EE6UYGF · pith_short_16: 322J4EE6UYGF436A · pith_short_8: 322J4EE6

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/322J4EE6UYGF436AMSNOEMXTDH \
  | 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: deb49e109ea60c5e6fc0649ae232f319dd0dcadf2119fc40d6aed9c14a3e1e13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55bf9ee1b6d32d07d0f32f956497ac765759e3b2ddd36d4f2c0fcfc5629e4cdd",
    "cross_cats_sorted": [
      "math.AP",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-05-05T19:32:54Z",
    "title_canon_sha256": "2776572e21299e2b68629672fba65caf31ba9ac2297c26961cc83f7c130b98c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.01702",
    "kind": "arxiv",
    "version": 2
  }
}