Pith Number

pith:A4IVANSJ

pith:2021:A4IVANSJWWUH4QTNCDNFTCWRRQ

not attested not anchored not stored refs pending

VMAF-based Bitrate Ladder Estimation for Adaptive Streaming

Angeliki V. Katsenou, David R. Bull, Fan Zhang, Joel Sole, Kyle Swanson, Mariana Afonso

arxiv:2103.07564 v1 · 2021-03-12 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A4IVANSJWWUH4QTNCDNFTCWRRQ}

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	2026-07-05T03:14:54.141940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0711503649b5a87e426d10da598ad18c0149593bdf092b062948011c3ad08e42

Aliases

arxiv: 2103.07564 · arxiv_version: 2103.07564v1 · doi: 10.48550/arxiv.2103.07564 · pith_short_12: A4IVANSJWWUH · pith_short_16: A4IVANSJWWUH4QTN · pith_short_8: A4IVANSJ

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/A4IVANSJWWUH4QTNCDNFTCWRRQ \
  | 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: 0711503649b5a87e426d10da598ad18c0149593bdf092b062948011c3ad08e42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7730cc158ec7907b67cdad2de6ee87ab6e46475f1d437568e417b2e19edf99d3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-03-12T23:14:10Z",
    "title_canon_sha256": "a2ed419916207a863db579a003b666c9b625d3e24674623fb1906b4d346d532d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.07564",
    "kind": "arxiv",
    "version": 1
  }
}