Pith Number

pith:6Q7BYQZJ

pith:2017:6Q7BYQZJZIRZWMNI72ZAIJLQPC

not attested not anchored not stored refs pending

Forgetting the Forgotten with Letheia, Concealing Content Deletion from Persistent Observers

Aniket Kate, Krishna Gummadi, Mainack Mondal, Mohsen Minaei, Patrick Loiseau

arxiv:1710.11271 v2 · 2017-10-30 · cs.CR · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6Q7BYQZJZIRZWMNI72ZAIJLQPC}

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	2026-05-18T00:04:45.239160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f43e1c4329ca239b31a8feb20425707880fe168a55f0b81e8e6658b83590171d

Aliases

arxiv: 1710.11271 · arxiv_version: 1710.11271v2 · doi: 10.48550/arxiv.1710.11271 · pith_short_12: 6Q7BYQZJZIRZ · pith_short_16: 6Q7BYQZJZIRZWMNI · pith_short_8: 6Q7BYQZJ

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/6Q7BYQZJZIRZWMNI72ZAIJLQPC \
  | 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: f43e1c4329ca239b31a8feb20425707880fe168a55f0b81e8e6658b83590171d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb9366bd32bb9435057bb2415b44743459e595228831cd1e8559e908f47c0dd1",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-10-30T23:45:56Z",
    "title_canon_sha256": "a306db285dca442a21fb18329db83eb0c608ae1d340255a6167c921a64bad858"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.11271",
    "kind": "arxiv",
    "version": 2
  }
}