Pith Number

pith:7CPTVSMB

pith:2022:7CPTVSMB7MYPTB3IOT7EI7ROT7

not attested not anchored not stored refs pending

Efficient Remote Photoplethysmography with Temporal Derivative Modules and Time-Shift Invariant Loss

Adria Ruiz, Federico Sukno, Joaquim Comas

arxiv:2203.10882 v2 · 2022-03-21 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CPTVSMB7MYPTB3IOT7EI7ROT7}

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	2026-07-05T04:17:21.450680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f89f3ac981fb30f9876874fe447e2e9fcc55253f9a0e1fd978ac40259332772b

Aliases

arxiv: 2203.10882 · arxiv_version: 2203.10882v2 · doi: 10.48550/arxiv.2203.10882 · pith_short_12: 7CPTVSMB7MYP · pith_short_16: 7CPTVSMB7MYPTB3I · pith_short_8: 7CPTVSMB

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/7CPTVSMB7MYPTB3IOT7EI7ROT7 \
  | 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: f89f3ac981fb30f9876874fe447e2e9fcc55253f9a0e1fd978ac40259332772b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e60c1116832a9fd7b7ae9ba39c9699dcf9c65203e63b2f9844f7ca7e89c731fb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-03-21T11:08:06Z",
    "title_canon_sha256": "1f12ae0cc741826d2e6b61f7020fef92c7de7a2d86c10bdd8d6de3749c6ddfb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.10882",
    "kind": "arxiv",
    "version": 2
  }
}