Pith Number

pith:XK5XPJIN

pith:2017:XK5XPJINCVH3YCBSTSFQBL6UJU

not attested not anchored not stored refs pending

PSUM:Peer-to-peer multimedia content distribution using collusion-resistant fingerprinting

Amna Qureshi, David Meg\'ias, Helena Rif\`a-Pous

arxiv:1703.01820 v1 · 2017-03-06 · cs.CR · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XK5XPJINCVH3YCBSTSFQBL6UJU}

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	2026-05-18T00:49:29.606962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

babb77a50d154fbc08329c8b00afd44d33df95efd29e74bb6fa1691e125659bd

Aliases

arxiv: 1703.01820 · arxiv_version: 1703.01820v1 · doi: 10.48550/arxiv.1703.01820 · pith_short_12: XK5XPJINCVH3 · pith_short_16: XK5XPJINCVH3YCBS · pith_short_8: XK5XPJIN

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/XK5XPJINCVH3YCBSTSFQBL6UJU \
  | 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: babb77a50d154fbc08329c8b00afd44d33df95efd29e74bb6fa1691e125659bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd946c2b82af994aefde4a70bc4f34043ea8c7ccb1e97450e03f9a0fe287f7ed",
    "cross_cats_sorted": [
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-03-06T11:47:30Z",
    "title_canon_sha256": "12432b20da6e7ecff92ad80450d13dc34d321a61d86c5cdc3562614dc3094538"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.01820",
    "kind": "arxiv",
    "version": 1
  }
}