Pith Number

pith:OULZ3PQL

pith:2026:OULZ3PQLSKDAVQNERTQXV626GZ

not attested not anchored not stored refs resolved

Real2Sim in HOI: Toward Physically Plausible HOI Reconstruction from Monocular Videos

Chengfeng Zhao, Chi-Keung Tang, Yuan Liu, Yubo Zhao, Yujin Chai, Yunao Dong, Zijiao Zeng

HA-HOI recovers 4D human-object interactions from monocular videos that remain stable under physics simulation.

arxiv:2605.14462 v1 · 2026-05-14 · cs.CV

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\usepackage{pith}
\pithnumber{OULZ3PQLSKDAVQNERTQXV626GZ}

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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.

Claims

C1strongest claim

Across benchmark and in-the-wild videos, HA-HOI improves human-object alignment, contact consistency, temporal stability, and simulation readiness over prior monocular HOI reconstruction methods.

C2weakest assumption

That accurate human motion recovered from monocular video can serve as a reliable interaction anchor whose kinematic trajectory, when projected into physics simulation, produces stable contacts and functional manipulation without additional constraints or post-processing.

C3one line summary

HA-HOI produces physically plausible 4D HOI animations from monocular videos by anchoring object reconstruction to human motion and refining the result in a physics-based humanoid-object simulator.

References

15 extracted · 15 resolved · 3 Pith anchors

[1] arXiv preprint arXiv:2507.21045 (2025) 1, 3

[2] //arxiv.org/abs/2212.06870

[3] arXiv preprint arXiv:2509.07920 (2025)

[4] Unish: Unify- ing scene and human reconstruction in a feed-forward pass

[5] Track4world: Feedforward world-centric dense 3d tracking of all pixels.arXiv preprint arXiv:2603.02573,

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-17T23:39:06.766204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75179dbe0b92860ac1a48ce17afb5e364caadd7c2eec2119bf13b1017c0a5080

Aliases

arxiv: 2605.14462 · arxiv_version: 2605.14462v1 · doi: 10.48550/arxiv.2605.14462 · pith_short_12: OULZ3PQLSKDA · pith_short_16: OULZ3PQLSKDAVQNE · pith_short_8: OULZ3PQL

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/OULZ3PQLSKDAVQNERTQXV626GZ \
  | 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: 75179dbe0b92860ac1a48ce17afb5e364caadd7c2eec2119bf13b1017c0a5080

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceadcbfe397879f5ffeede537f1583cfb8adc2fbc4e35985d4723c0cc080f4e9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-14T06:56:57Z",
    "title_canon_sha256": "1ca61be3528a3e9c8af97ab86261df7e92b860e0b8005f33d334bdebe250b622"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14462",
    "kind": "arxiv",
    "version": 1
  }
}