Pith Number

pith:6R2T56W6

pith:2002:6R2T56W6AH3V2RHOBY4N5GR5K4

not attested not anchored not stored refs pending

A note on $H^1(Emb(M,N))$

Olaf M\"uller

arxiv:math/0202049 v1 · 2002-02-06 · math.AT · math-ph · math.DG · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6R2T56W6AH3V2RHOBY4N5GR5K4}

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	2026-05-18T01:14:26.454873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4753efade01f75d44ee0e38de9a3d571a6f43f5e9d54635795f35141389f6ee

Aliases

arxiv: math/0202049 · arxiv_version: math/0202049v1 · doi: 10.48550/arxiv.math/0202049 · pith_short_12: 6R2T56W6AH3V · pith_short_16: 6R2T56W6AH3V2RHO · pith_short_8: 6R2T56W6

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/6R2T56W6AH3V2RHOBY4N5GR5K4 \
  | 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: f4753efade01f75d44ee0e38de9a3d571a6f43f5e9d54635795f35141389f6ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5656a640c8c2c06a5b269b829f8a1dc9e570adb4c706edad0b3f20491f50a1f4",
    "cross_cats_sorted": [
      "math-ph",
      "math.DG",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "2002-02-06T20:08:56Z",
    "title_canon_sha256": "880aa0be18a351f59720dbdd5e90e4cf4bcdc7b1edf951d2bb949cf59b75b1ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0202049",
    "kind": "arxiv",
    "version": 1
  }
}