Pith Number

pith:SHDWWZN3

pith:2015:SHDWWZN32DI42ABU5C3JG7DK3W

not attested not anchored not stored refs pending

Compressed Differential Erasure Codes for Efficient Archival of Versioned Data

Anwitaman Datta, Fr\'ed\'erique Oggier, J. Harshan

arxiv:1503.05434 v1 · 2015-03-17 · cs.IT · cs.DC · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SHDWWZN32DI42ABU5C3JG7DK3W}

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	2026-05-18T02:21:50.412199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91c76b65bbd0d1cd0034e8b6937c6add943cee884661e58e1ee0e75aadbb7545

Aliases

arxiv: 1503.05434 · arxiv_version: 1503.05434v1 · doi: 10.48550/arxiv.1503.05434 · pith_short_12: SHDWWZN32DI4 · pith_short_16: SHDWWZN32DI42ABU · pith_short_8: SHDWWZN3

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/SHDWWZN32DI42ABU5C3JG7DK3W \
  | 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: 91c76b65bbd0d1cd0034e8b6937c6add943cee884661e58e1ee0e75aadbb7545

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c58b4acd1379d53ba15557a99c3b9634765af6f349e083d63a59af074f10987a",
    "cross_cats_sorted": [
      "cs.DC",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-03-17T09:49:50Z",
    "title_canon_sha256": "162e1db11ebfba979ed8621eaceb8c00f45a6d8a9f0833d4a0bc03ca3f2b0869"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05434",
    "kind": "arxiv",
    "version": 1
  }
}