Pith Number

pith:T6YKFS7H

pith:2013:T6YKFS7HMUBHXFAV4S5FOXN4XV

not attested not anchored not stored refs pending

Improved Hubble Space Telescope Proper Motions for Tycho-G and Other Stars in the Remnant of Tycho's Supernova 1572

(2) IFF-CSIC Madrid, 3, 3), (3) UB-IEEC Barcelona, 4), (4) MPIA Garching, (5) IAC, 6), (6) Uni. La Laguna, 7). ((1) INAF-OAPD, (7) Uni. Barcelona, (8) UC Berkeley, (9) INGT Santa Cruz de la Palma), A. V. Filippenko (8), J. I. Gonzalez Hernandez (5, J. Mendez (9, L. R. Bedin (1), P. Ruiz-Lapuente (2, R. Canal (7

arxiv:1312.5640 v1 · 2013-12-19 · 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{T6YKFS7HMUBHXFAV4S5FOXN4XV}

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	2026-05-18T02:57:16.970647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fb0a2cbe765027b9415e4ba575dbcbd54a59bdd46bd6345e5e50c909eb5bc16

Aliases

arxiv: 1312.5640 · arxiv_version: 1312.5640v1 · doi: 10.48550/arxiv.1312.5640 · pith_short_12: T6YKFS7HMUBH · pith_short_16: T6YKFS7HMUBHXFAV · pith_short_8: T6YKFS7H

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/T6YKFS7HMUBHXFAV4S5FOXN4XV \
  | 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: 9fb0a2cbe765027b9415e4ba575dbcbd54a59bdd46bd6345e5e50c909eb5bc16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb6e9b0a6d2015123b8302435de48da09e2148e70914df0d529d38bbb8346e5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-12-19T17:05:48Z",
    "title_canon_sha256": "00efecef70d2151de46e0b728759799acb3ff7090f21e60d69eca54be79c5a99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5640",
    "kind": "arxiv",
    "version": 1
  }
}