Pith Number

pith:FB2Z2UUJ

pith:2015:FB2Z2UUJNGJH2JO2BT3UHZJ3ED

not attested not anchored not stored refs pending

YSOVAR: mid-infrared variability of young stellar objects and their disks in the cluster IRAS 20050+2720

A. M. Cody, C. Espaillat, H. M. G\"unther, Inseok Song, J. Forbrich, J. L. Hora, J. R. Stauffer, K. Poppenhaeger, K. R. Covey, L. A. Hillenbrand, L. M. Rebull, M. Morales-Calderon, P. Plavchan, R. A. Gutermuth, S. J. Wolk

arxiv:1507.04325 v1 · 2015-07-15 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FB2Z2UUJNGJH2JO2BT3UHZJ3ED}

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	2026-05-18T01:31:37.638602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28759d528969927d25da0cf743e53b20ed0f5344ccedd82e3e462a7e69c7ce16

Aliases

arxiv: 1507.04325 · arxiv_version: 1507.04325v1 · doi: 10.48550/arxiv.1507.04325 · pith_short_12: FB2Z2UUJNGJH · pith_short_16: FB2Z2UUJNGJH2JO2 · pith_short_8: FB2Z2UUJ

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/FB2Z2UUJNGJH2JO2BT3UHZJ3ED \
  | 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: 28759d528969927d25da0cf743e53b20ed0f5344ccedd82e3e462a7e69c7ce16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebd7996a7ba85926b8691c708ed1ef2e5581405b700712b5b7d9be55a7fdd3f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-07-15T18:53:25Z",
    "title_canon_sha256": "d273e82e33adde67c23812567495a92c66fa193fe756e747c14a2da244ab4a01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04325",
    "kind": "arxiv",
    "version": 1
  }
}