Pith Number

pith:HUDZ3NV7

pith:2012:HUDZ3NV7VS5YYVAWF6WHFZISCT

not attested not anchored not stored refs pending

A Digital Signature Scheme for Long-Term Security

Dimitrios Poulakis, Robert Rolland

arxiv:1203.4077 v2 · 2012-03-19 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUDZ3NV7VS5YYVAWF6WHFZISCT}

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	2026-05-18T01:34:55.843059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d079db6bfacbb8c54162fac72e51214cb4682747a63b2df8ea236969086a0f0

Aliases

arxiv: 1203.4077 · arxiv_version: 1203.4077v2 · doi: 10.48550/arxiv.1203.4077 · pith_short_12: HUDZ3NV7VS5Y · pith_short_16: HUDZ3NV7VS5YYVAW · pith_short_8: HUDZ3NV7

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/HUDZ3NV7VS5YYVAWF6WHFZISCT \
  | 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: 3d079db6bfacbb8c54162fac72e51214cb4682747a63b2df8ea236969086a0f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a7d4a9f3e0d5450c3bae1dfedcde019de5332443e4354f4645c7465d28ad1cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2012-03-19T11:03:42Z",
    "title_canon_sha256": "7b80fb8211f422029810a2231638d9e92956ccf47733ac5f9507118fd3352f53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4077",
    "kind": "arxiv",
    "version": 2
  }
}