pith. sign in
Pith Number

pith:TQANKB4R

pith:2015:TQANKB4R5SLAGAJ5BHGEB7SICI
not attested not anchored not stored refs pending

Steepening of the 820 micron continuum surface-brightness profile signals dust evolution in TW Hya's disk

(2) Harvard-Smithsonian Center for Astrophysics, Chunhua Qi (2), David Bekkers (1), David J. Wilner (2) ((1) Leiden Observatory, Leiden University, Michiel R. Hogerheijde (1), Mihkel Kama (1), Paola Pinilla (1), Sean M. Andrews (2), The Netherlands, USA), Vachail N. Salinas (1)

arxiv:1512.05553 v1 · 2015-12-17 · astro-ph.SR

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{TQANKB4R5SLAGAJ5BHGEB7SICI}

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 2026-05-18T01:21:25.775628Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

9c00d50791ec9603013d09cc40fe48123816526fd5a8878664b4898a47780495

Aliases

arxiv: 1512.05553 · arxiv_version: 1512.05553v1 · doi: 10.48550/arxiv.1512.05553 · pith_short_12: TQANKB4R5SLA · pith_short_16: TQANKB4R5SLAGAJ5 · pith_short_8: TQANKB4R
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/TQANKB4R5SLAGAJ5BHGEB7SICI \
  | 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: 9c00d50791ec9603013d09cc40fe48123816526fd5a8878664b4898a47780495
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "1f740dc04611425972ab7e93b75ed5d51bf36e826021df6014a4d8201ec5eb10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-12-17T12:19:09Z",
    "title_canon_sha256": "50668a34c7b5fd6b46265666d8f42e7205d956b895714209fb1ac25238f54d29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.05553",
    "kind": "arxiv",
    "version": 1
  }
}